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Finding the Third Proportional to 10,917 and 16,358

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Solution

The third proportional to 10,917 and 16,358 is: 24,510.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917 : 16,358 = 16,358 : x
  2. Step 2: Convert to fraction form
    10,917/16,358 = 16,358/x
  3. Step 3: Cross multiply
    10,917x = 16,358 × 16,358
  4. Step 4: Simplify right side
    10,917x = 267,584,164
  5. Step 5: Solve for x
    x = 267,584,164/10,917
  6. Step 6: Final answer
    x = 24,510.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.