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Finding the Third Proportional to 3,882 and 5,435

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Solution

The third proportional to 3,882 and 5,435 is: 7,609.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882 : 5,435 = 5,435 : x
  2. Step 2: Convert to fraction form
    3,882/5,435 = 5,435/x
  3. Step 3: Cross multiply
    3,882x = 5,435 × 5,435
  4. Step 4: Simplify right side
    3,882x = 29,539,225
  5. Step 5: Solve for x
    x = 29,539,225/3,882
  6. Step 6: Final answer
    x = 7,609.28

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.