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Finding the Third Proportional to 3,882 and 5,397

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Solution

The third proportional to 3,882 and 5,397 is: 7,503.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882 : 5,397 = 5,397 : x
  2. Step 2: Convert to fraction form
    3,882/5,397 = 5,397/x
  3. Step 3: Cross multiply
    3,882x = 5,397 × 5,397
  4. Step 4: Simplify right side
    3,882x = 29,127,609
  5. Step 5: Solve for x
    x = 29,127,609/3,882
  6. Step 6: Final answer
    x = 7,503.25

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.