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Finding the Third Proportional to 18,468 and 39,393

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Solution

The third proportional to 18,468 and 39,393 is: 84,026.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468 : 39,393 = 39,393 : x
  2. Step 2: Convert to fraction form
    18,468/39,393 = 39,393/x
  3. Step 3: Cross multiply
    18,468x = 39,393 × 39,393
  4. Step 4: Simplify right side
    18,468x = 1,551,808,449
  5. Step 5: Solve for x
    x = 1,551,808,449/18,468
  6. Step 6: Final answer
    x = 84,026.88

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.