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Finding the Third Proportional to 3,552 and 7,489

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Solution

The third proportional to 3,552 and 7,489 is: 15,789.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,552 : 7,489 = 7,489 : x
  2. Step 2: Convert to fraction form
    3,552/7,489 = 7,489/x
  3. Step 3: Cross multiply
    3,552x = 7,489 × 7,489
  4. Step 4: Simplify right side
    3,552x = 56,085,121
  5. Step 5: Solve for x
    x = 56,085,121/3,552
  6. Step 6: Final answer
    x = 15,789.73

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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.