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Finding the Third Proportional to 3,920 and 9,452

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Solution

The third proportional to 3,920 and 9,452 is: 22,790.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920 : 9,452 = 9,452 : x
  2. Step 2: Convert to fraction form
    3,920/9,452 = 9,452/x
  3. Step 3: Cross multiply
    3,920x = 9,452 × 9,452
  4. Step 4: Simplify right side
    3,920x = 89,340,304
  5. Step 5: Solve for x
    x = 89,340,304/3,920
  6. Step 6: Final answer
    x = 22,790.89

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.