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Finding the Third Proportional to 3,418 and 7,249

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Solution

The third proportional to 3,418 and 7,249 is: 15,373.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418 : 7,249 = 7,249 : x
  2. Step 2: Convert to fraction form
    3,418/7,249 = 7,249/x
  3. Step 3: Cross multiply
    3,418x = 7,249 × 7,249
  4. Step 4: Simplify right side
    3,418x = 52,548,001
  5. Step 5: Solve for x
    x = 52,548,001/3,418
  6. Step 6: Final answer
    x = 15,373.90

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.