how to find the value of unknown in continued proportional
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Step-by-step explanation:
Continued Proportion
Find the mean proportion between 4 and 9. Solution: Let the mean proportion be x. Therefore, 4 : x = x : 9. ⇒ x × x = 4 × 9. ...
Find, m, if 7, 14, m are in continued proportion. Solution: x, y and z are in continued proportion xz = y2 Let 7, 14, and m be x, y and z respectively. ...
Find the third proportional to 12 and 30.
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Answer:
First, write the proportion, using a letter to stand for the missing term. We find the cross products by multiplying 20 times x, and 50 times 30. Then divide to find x.
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