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Question
Find the third proportion to the following :
16x2 and 24x
Solution
Let y be !he third proportion
16x2 : 24x : : 24 x : y
⇒ 16x2 : 24 x : : 24 x : y
⇒ 16x2 y = 576 x2
⇒ 16 y = 576
⇒ y = 36
The third proporbon is 36.
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