50/90, 500/900 and 55/99 are three ratios equivalent to 5/9.
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Add the ratios and divide into '23' 1 : 5 : 3 = 1 + 5 + 3 = 9 23/9 = 2.555 Hence 1 ratio is 1 x 2.555... = 2.555... 5 ratios are 5 x 2.555...... = 12.777.... 3 ratios are 3 x 2.555... = 7.6666.... Hence the ratios are 1:5:3 :: 2.555...:12.777...:7.666...
1 to 3 2 to 6 3 to 9
To determine if two ratios are proportional, we cross multiply and check if the products are equal. In this case, 8 * 4 = 32 and 9 * 3 = 27. Since 32 is not equal to 27, the ratios 8 to 9 and 3 to 4 are not proportional.
10 to 6; 15 to 9; 20 to 12
yes because if you cancel 9/15 down it will equal 3/5 e.g 9/15 divide 3 both sides equal 3/5