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Finding the Third Proportional to 38,481.75 and 82,712.25

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Solution

The third proportional to 38,481.75 and 82,712.25 is: 177,780.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,481.75 : 82,712.25 = 82,712.25 : x
  2. Step 2: Convert to fraction form
    38,481.75/82,712.25 = 82,712.25/x
  3. Step 3: Cross multiply
    38,481.75x = 82,712.25 × 82,712.25
  4. Step 4: Simplify right side
    38,481.75x = 6,841,316,300.06
  5. Step 5: Solve for x
    x = 6,841,316,300.06/38,481.75
  6. Step 6: Final answer
    x = 177,780.80

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.