Question

Find the missing number in the proportion.
StartFraction 10 Over x plus 3 EndFraction
equalsfive fourths
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Question content area right
Part 1
xequals
  
enter your response here
Answered by GPT-5 mini
10/(x + 3) = 5/4
Cross-multiply: 10·4 = 5·(x + 3) → 40 = 5x + 15
5x = 25 → x = 5
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