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Finding the Third Proportional to 3,998 and 9,269

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Solution

The third proportional to 3,998 and 9,269 is: 21,489.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998 : 9,269 = 9,269 : x
  2. Step 2: Convert to fraction form
    3,998/9,269 = 9,269/x
  3. Step 3: Cross multiply
    3,998x = 9,269 × 9,269
  4. Step 4: Simplify right side
    3,998x = 85,914,361
  5. Step 5: Solve for x
    x = 85,914,361/3,998
  6. Step 6: Final answer
    x = 21,489.33

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.