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Finding the Third Proportional to 38,371.50 and 82,791

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Solution

The third proportional to 38,371.50 and 82,791 is: 178,631.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,371.50 : 82,791 = 82,791 : x
  2. Step 2: Convert to fraction form
    38,371.50/82,791 = 82,791/x
  3. Step 3: Cross multiply
    38,371.50x = 82,791 × 82,791
  4. Step 4: Simplify right side
    38,371.50x = 6,854,349,681
  5. Step 5: Solve for x
    x = 6,854,349,681/38,371.50
  6. Step 6: Final answer
    x = 178,631.27

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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.