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Finding the Third Proportional to 18,878 and 29,349

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Solution

The third proportional to 18,878 and 29,349 is: 45,627.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878 : 29,349 = 29,349 : x
  2. Step 2: Convert to fraction form
    18,878/29,349 = 29,349/x
  3. Step 3: Cross multiply
    18,878x = 29,349 × 29,349
  4. Step 4: Simplify right side
    18,878x = 861,363,801
  5. Step 5: Solve for x
    x = 861,363,801/18,878
  6. Step 6: Final answer
    x = 45,627.92

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.