Find the third proportional to 2.4kg,9.6kg.

Answers (1)

Let the third proportional to 2.4kg,9.6kg be x kg
Then 2.4 kg,9.6 kg and x kg are in continued proportion
Rightarrow frac2.49.6=frac9.6x
Rightarrow frac2496=frac9.6x
Rightarrow frac14=frac9.6x
Rightarrow x=9.6	imes4=38.4
Hence the third proportional is 38.4 kg.

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