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Finding the Third Proportional to 5,517 and 7,398

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Solution

The third proportional to 5,517 and 7,398 is: 9,920.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517 : 7,398 = 7,398 : x
  2. Step 2: Convert to fraction form
    5,517/7,398 = 7,398/x
  3. Step 3: Cross multiply
    5,517x = 7,398 × 7,398
  4. Step 4: Simplify right side
    5,517x = 54,730,404
  5. Step 5: Solve for x
    x = 54,730,404/5,517
  6. Step 6: Final answer
    x = 9,920.32

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.