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Finding the Third Proportional to 10,918 and 16,432

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Solution

The third proportional to 10,918 and 16,432 is: 24,730.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918 : 16,432 = 16,432 : x
  2. Step 2: Convert to fraction form
    10,918/16,432 = 16,432/x
  3. Step 3: Cross multiply
    10,918x = 16,432 × 16,432
  4. Step 4: Simplify right side
    10,918x = 270,010,624
  5. Step 5: Solve for x
    x = 270,010,624/10,918
  6. Step 6: Final answer
    x = 24,730.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.