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Finding the Third Proportional to 8,338 and 18,008

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Solution

The third proportional to 8,338 and 18,008 is: 38,892.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338 : 18,008 = 18,008 : x
  2. Step 2: Convert to fraction form
    8,338/18,008 = 18,008/x
  3. Step 3: Cross multiply
    8,338x = 18,008 × 18,008
  4. Step 4: Simplify right side
    8,338x = 324,288,064
  5. Step 5: Solve for x
    x = 324,288,064/8,338
  6. Step 6: Final answer
    x = 38,892.79

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.