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Finding the Third Proportional to 18,330 and 27,849

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Solution

The third proportional to 18,330 and 27,849 is: 42,311.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,330 : 27,849 = 27,849 : x
  2. Step 2: Convert to fraction form
    18,330/27,849 = 27,849/x
  3. Step 3: Cross multiply
    18,330x = 27,849 × 27,849
  4. Step 4: Simplify right side
    18,330x = 775,566,801
  5. Step 5: Solve for x
    x = 775,566,801/18,330
  6. Step 6: Final answer
    x = 42,311.34

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.