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Finding the Third Proportional to 7,432 and 10,839

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Solution

The third proportional to 7,432 and 10,839 is: 15,807.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,432 : 10,839 = 10,839 : x
  2. Step 2: Convert to fraction form
    7,432/10,839 = 10,839/x
  3. Step 3: Cross multiply
    7,432x = 10,839 × 10,839
  4. Step 4: Simplify right side
    7,432x = 117,483,921
  5. Step 5: Solve for x
    x = 117,483,921/7,432
  6. Step 6: Final answer
    x = 15,807.85

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.