What is the mean propation of 8 and 18?
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hope it helps. To find the mean proportional between 8 and 18, first multiply the two given numbers together, then find the square root out of their product. Then the answer will be the mean proportional between 8 and 18. Here, 8 × 18 = 144. ⇒ √144 = 12. So, 12 is the mean proportional between 8 and 18.
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