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Finding the Third Proportional to 38,555 and 80,188

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Solution

The third proportional to 38,555 and 80,188 is: 166,777.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,555 : 80,188 = 80,188 : x
  2. Step 2: Convert to fraction form
    38,555/80,188 = 80,188/x
  3. Step 3: Cross multiply
    38,555x = 80,188 × 80,188
  4. Step 4: Simplify right side
    38,555x = 6,430,115,344
  5. Step 5: Solve for x
    x = 6,430,115,344/38,555
  6. Step 6: Final answer
    x = 166,777.73

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.