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Finding the Third Proportional to 7,442 and 15,748

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Solution

The third proportional to 7,442 and 15,748 is: 33,324.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,442 : 15,748 = 15,748 : x
  2. Step 2: Convert to fraction form
    7,442/15,748 = 15,748/x
  3. Step 3: Cross multiply
    7,442x = 15,748 × 15,748
  4. Step 4: Simplify right side
    7,442x = 247,999,504
  5. Step 5: Solve for x
    x = 247,999,504/7,442
  6. Step 6: Final answer
    x = 33,324.31

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.