X = (3/4) X Y Or, X:Y = 3:4 Let, 'Y' = '20x' So, X = (3/4) X 20x = 15x Y = (5/4) X Z Or, 20x = (5/4) X Z Or, Z = 20x X (4/5) = 16x So, X:Z = 15x:16x = 15:16
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