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Finding the Third Proportional to 43,949 and 69,876

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Solution

The third proportional to 43,949 and 69,876 is: 111,098.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,949 : 69,876 = 69,876 : x
  2. Step 2: Convert to fraction form
    43,949/69,876 = 69,876/x
  3. Step 3: Cross multiply
    43,949x = 69,876 × 69,876
  4. Step 4: Simplify right side
    43,949x = 4,882,655,376
  5. Step 5: Solve for x
    x = 4,882,655,376/43,949
  6. Step 6: Final answer
    x = 111,098.21

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.