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Finding the Third Proportional to 3,692 and 5,398

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Solution

The third proportional to 3,692 and 5,398 is: 7,892.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,692 : 5,398 = 5,398 : x
  2. Step 2: Convert to fraction form
    3,692/5,398 = 5,398/x
  3. Step 3: Cross multiply
    3,692x = 5,398 × 5,398
  4. Step 4: Simplify right side
    3,692x = 29,138,404
  5. Step 5: Solve for x
    x = 29,138,404/3,692
  6. Step 6: Final answer
    x = 7,892.31

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.