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Finding the Third Proportional to 3,882 and 8,382

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Solution

The third proportional to 3,882 and 8,382 is: 18,098.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882 : 8,382 = 8,382 : x
  2. Step 2: Convert to fraction form
    3,882/8,382 = 8,382/x
  3. Step 3: Cross multiply
    3,882x = 8,382 × 8,382
  4. Step 4: Simplify right side
    3,882x = 70,257,924
  5. Step 5: Solve for x
    x = 70,257,924/3,882
  6. Step 6: Final answer
    x = 18,098.38

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.