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Finding the Third Proportional to 38,578 and 80,228

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Solution

The third proportional to 38,578 and 80,228 is: 166,844.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,578 : 80,228 = 80,228 : x
  2. Step 2: Convert to fraction form
    38,578/80,228 = 80,228/x
  3. Step 3: Cross multiply
    38,578x = 80,228 × 80,228
  4. Step 4: Simplify right side
    38,578x = 6,436,531,984
  5. Step 5: Solve for x
    x = 6,436,531,984/38,578
  6. Step 6: Final answer
    x = 166,844.63

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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.