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Finding the Third Proportional to 52,872 and 77,198

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Solution

The third proportional to 52,872 and 77,198 is: 112,716.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,872 : 77,198 = 77,198 : x
  2. Step 2: Convert to fraction form
    52,872/77,198 = 77,198/x
  3. Step 3: Cross multiply
    52,872x = 77,198 × 77,198
  4. Step 4: Simplify right side
    52,872x = 5,959,531,204
  5. Step 5: Solve for x
    x = 5,959,531,204/52,872
  6. Step 6: Final answer
    x = 112,716.21

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.