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Finding the Third Proportional to 11,156 and 15,902

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Solution

The third proportional to 11,156 and 15,902 is: 22,667.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156 : 15,902 = 15,902 : x
  2. Step 2: Convert to fraction form
    11,156/15,902 = 15,902/x
  3. Step 3: Cross multiply
    11,156x = 15,902 × 15,902
  4. Step 4: Simplify right side
    11,156x = 252,873,604
  5. Step 5: Solve for x
    x = 252,873,604/11,156
  6. Step 6: Final answer
    x = 22,667.05

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.