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Finding the Third Proportional to 33,930 and 38,872

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Solution

The third proportional to 33,930 and 38,872 is: 44,533.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,930 : 38,872 = 38,872 : x
  2. Step 2: Convert to fraction form
    33,930/38,872 = 38,872/x
  3. Step 3: Cross multiply
    33,930x = 38,872 × 38,872
  4. Step 4: Simplify right side
    33,930x = 1,511,032,384
  5. Step 5: Solve for x
    x = 1,511,032,384/33,930
  6. Step 6: Final answer
    x = 44,533.82

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.