2) If the middle of the numbers (23 - x) and (19 - x) is a proportional term (28 -X), find the value of x.
In the same way, there are many more.
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Answer:
19-x/23-x=28-x/33-x
(19-x)(33-x)=(23-x)(18-x)
627-19x-33x+x^2=414-18x-23x+x^2
627-52x=414-41x
627-414=-41x+51x
213=10x
x=21.3 if I get the the question correctly
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