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" The equality of the two ratios may be indicated by the sign = or by the double colon :: Thus, we may indicate that the ratio of 8 to 4 is equal to that of 6 to 3, in any of the following ways : 8:4 = 6:3, 8:4::6:3, f = 3, 8-5-4 = 6-f-3. "
New Complete Arithmetic on the Inductive Method: With Parallel Mental and ... - Page 243
by James William Nicholson - 1885 - 326 pages
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The Complete Arithmetic, Part 2

Daniel W. Fish - Arithmetic - 1874 - 298 pages
...following ways : 8:4 = 6:3, 8:4::6:3, f = 1 8 -i- 4 = 6 •*- 3. 4 o This proportion, in any of its forms, is read, The ratio of 8 to 4 is equal to the ratio of 6 to 3, or, 8 is to 4 as 6 is to 3. 758. Since each ratio consists of two term*, every proportion must consist of...
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The Complete Algebra: Designed for Use in Schools, Academies, and Colleges

Joseph Ficklin - Algebra - 1874 - 446 pages
...that of 6 to 3 in any of the following 8:4 = 6:3 8:4::6:3 86 This proportion, in any of its forms, is read the ratio of 8 to 4 is equal to the ratio of 6 to S, or, 8 is to 4 as 6 is to 3. * A geometrical proportion is one in which the ratios are geometrical....
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The Complete Arithmetic, Part 2

Daniel W. Fish - Arithmetic - 1874 - 298 pages
...following ways : 8:4 = 6:3, 8:4::6:3, | = | 8 -5- 4 = 6 -5- 3. This proportion, in any of its forms, is read, The ratio of 8 to 4 is equal to the ratio of 0 to 3, or, 8 is to 4 as 6 is to 3. 758. Since each ratio consists of two terms, every proportion must...
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The Complete Arithmetic: Oral and Written

Daniel W. Fish - Arithmetic - 1874 - 540 pages
...6:8, 8:4::6:3, | = f, 8-s-4 = 6^-3. 4 o This proportion, in any of its forms, is read, The ratio of S to 4 is equal to the ratio of 6 to 3, or, 8 is to 4 as 6 is to 8. 758. Since each ratio consists of two terms, every proportion must consist of...
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The Complete Arithmetic, Oral and Written: Second Part

Daniel W. Fish - Arithmetic - 1876 - 296 pages
...following ways : 8:4 = 6:3, 8:4::6:3, f = 3, 8-5-4 = 6-f-3. 4 o This proportion, in any of its forms, is read, The ratio of 8 to 4 is equal to the ratio of 6 to 3, or, 8 is to 4. as 6 is to 3. 758. Since each ratio consists of two terms, every proportion must consist of...
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Fish's Arithmetic Number Two: Oral and Written, Upon the Inductive Method

Daniel W. Fish - Arithmetic - 1883 - 364 pages
...following ways : 8:4-6:3, 8:4::6:3, ? = f, 8^-4 = 6-i-3. 4 o This proportion, in any of its forms, is read, The ratio of 8 to 4 is equal to the ratio of 6 to 3, or, 8 is to 4 <zs 6 is to 3. 366. Since each ratio consists of two terms, every proportion must consist of...
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An Advanced Arithmetic, Theoretical and Practical

James William Nicholson - Arithmetic - 1889 - 408 pages
...which is equivalent to — . (I) 8:4 :: 6;3 is read, 8 is to 4 as 6 is to 3, and is equivalent to 8:4 = 6:3, which is read, the ratio of 8 to 4 is equal to...terms; and the means, the second and third terms. (1) In 5:10 :: 3:6, 5, 10, 3 and 6 are the terms or proportionals; 5 and 3 the antecedents; 10 and...
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Arithmetic by Grades for Inductive Teaching, Drilling and Testing, Book 7

John Tilden Prince - 1894 - 120 pages
...Name and express five couplets which have the same ratio as 4:2; 8:6; 12: 9; 3: 12; 2:7; 12:40. 1. The ratio of 8 to 4 is equal to the ratio of 12 to 6. This proportion is expressed as follows : 8 : 4 = 12 : 6. In the same way express the proportion...
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Grammar School Arithmetic for Inductive Teaching, Drilling and Testing ...

John Tilden Prince - Arithmetic - 1895 - 358 pages
...Name and express five couplets which have the same ratio as 4:2; 8:6; 12 ; У ; 3:12; 2:7; 12:40. 1. The ratio of 8 to 4 is equal to the ratio of 12 to 6. This proportion is expressed as follows : 8 : 4 = 12 : 6. In the same way express the proportion...
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Practical Applied Mathematics

Joseph Woodwell Ledwidge Hale - Mathematics - 1915 - 230 pages
...since each of these ratios is 2. This might be written and would be read, 8 is to 4 as 12 is to 6, or the ratio of 8 to 4 is equal to the ratio of 12 to 6. In this proportion 8 is called the first term, 4 the second, 12 the third, and 6 the fourth...
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