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Finding the Third Proportional to 11,165 and 15,163

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Solution

The third proportional to 11,165 and 15,163 is: 20,592.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,165 : 15,163 = 15,163 : x
  2. Step 2: Convert to fraction form
    11,165/15,163 = 15,163/x
  3. Step 3: Cross multiply
    11,165x = 15,163 × 15,163
  4. Step 4: Simplify right side
    11,165x = 229,916,569
  5. Step 5: Solve for x
    x = 229,916,569/11,165
  6. Step 6: Final answer
    x = 20,592.62

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.