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Finding the Third Proportional to 63,882 and 91,069

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Solution

The third proportional to 63,882 and 91,069 is: 129,826.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,882 : 91,069 = 91,069 : x
  2. Step 2: Convert to fraction form
    63,882/91,069 = 91,069/x
  3. Step 3: Cross multiply
    63,882x = 91,069 × 91,069
  4. Step 4: Simplify right side
    63,882x = 8,293,562,761
  5. Step 5: Solve for x
    x = 8,293,562,761/63,882
  6. Step 6: Final answer
    x = 129,826.29

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.