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Finding the Third Proportional to 40,444 and 81,981

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Solution

The third proportional to 40,444 and 81,981 is: 166,177.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,444 : 81,981 = 81,981 : x
  2. Step 2: Convert to fraction form
    40,444/81,981 = 81,981/x
  3. Step 3: Cross multiply
    40,444x = 81,981 × 81,981
  4. Step 4: Simplify right side
    40,444x = 6,720,884,361
  5. Step 5: Solve for x
    x = 6,720,884,361/40,444
  6. Step 6: Final answer
    x = 166,177.54

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.