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Finding the Third Proportional to 18,982 and 27,339

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Solution

The third proportional to 18,982 and 27,339 is: 39,375.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,982 : 27,339 = 27,339 : x
  2. Step 2: Convert to fraction form
    18,982/27,339 = 27,339/x
  3. Step 3: Cross multiply
    18,982x = 27,339 × 27,339
  4. Step 4: Simplify right side
    18,982x = 747,420,921
  5. Step 5: Solve for x
    x = 747,420,921/18,982
  6. Step 6: Final answer
    x = 39,375.25

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.