Date (23-x) is mean proportional of (28-x) and (19-x) ,then find the value of x.
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Answer:. b^2=ac
(23-x)^2 = (28-x) (19-x)
529+x^2-46x = 532+x^2-47x
47x-46x=532-529
x=3
Step-by-step explanation:
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