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Finding the Third Proportional to 3,542 and 7,471

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Solution

The third proportional to 3,542 and 7,471 is: 15,758.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,542 : 7,471 = 7,471 : x
  2. Step 2: Convert to fraction form
    3,542/7,471 = 7,471/x
  3. Step 3: Cross multiply
    3,542x = 7,471 × 7,471
  4. Step 4: Simplify right side
    3,542x = 55,815,841
  5. Step 5: Solve for x
    x = 55,815,841/3,542
  6. Step 6: Final answer
    x = 15,758.28

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.