Question
If the third proportion of 27 and 36 is “0.5k”, then
find the value of (k − 36) : (k + 12).Solution
Third proportion of two numbers ‘a’ and ‘b’ is (b²/a).
So, 0.5k = (36²/27) = 48
Or, 'k' = 96
Required value = (96 - 36) : (96 + 12) = 60 : 108 = 5 : 9
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