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Finding the Third Proportional to 37,325 and 81,931

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Solution

The third proportional to 37,325 and 81,931 is: 179,844.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,325 : 81,931 = 81,931 : x
  2. Step 2: Convert to fraction form
    37,325/81,931 = 81,931/x
  3. Step 3: Cross multiply
    37,325x = 81,931 × 81,931
  4. Step 4: Simplify right side
    37,325x = 6,712,688,761
  5. Step 5: Solve for x
    x = 6,712,688,761/37,325
  6. Step 6: Final answer
    x = 179,844.31

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.