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Finding the Third Proportional to 40,791 and 87,198

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Solution

The third proportional to 40,791 and 87,198 is: 186,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,791 : 87,198 = 87,198 : x
  2. Step 2: Convert to fraction form
    40,791/87,198 = 87,198/x
  3. Step 3: Cross multiply
    40,791x = 87,198 × 87,198
  4. Step 4: Simplify right side
    40,791x = 7,603,491,204
  5. Step 5: Solve for x
    x = 7,603,491,204/40,791
  6. Step 6: Final answer
    x = 186,401.20

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.