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Finding the Third Proportional to 18,644 and 38,546

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Solution

The third proportional to 18,644 and 38,546 is: 79,692.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,644 : 38,546 = 38,546 : x
  2. Step 2: Convert to fraction form
    18,644/38,546 = 38,546/x
  3. Step 3: Cross multiply
    18,644x = 38,546 × 38,546
  4. Step 4: Simplify right side
    18,644x = 1,485,794,116
  5. Step 5: Solve for x
    x = 1,485,794,116/18,644
  6. Step 6: Final answer
    x = 79,692.88

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.