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Finding the Third Proportional to 16,874 and 36,339

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Solution

The third proportional to 16,874 and 36,339 is: 78,257.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,874 : 36,339 = 36,339 : x
  2. Step 2: Convert to fraction form
    16,874/36,339 = 36,339/x
  3. Step 3: Cross multiply
    16,874x = 36,339 × 36,339
  4. Step 4: Simplify right side
    16,874x = 1,320,522,921
  5. Step 5: Solve for x
    x = 1,320,522,921/16,874
  6. Step 6: Final answer
    x = 78,257.85

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.