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Finding the Fourth Proportional to 57,765.97, 79,718.21 and 32,610.61

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Solution

The fourth proportional to 57,765.97, 79,718.21 and 32,610.61 is: 45,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,765.97 : 79,718.21 = 32,610.61 : x
  2. Step 2: Convert to fraction form
    57,765.97/79,718.21 = 32,610.61/x
  3. Step 3: Cross multiply
    57,765.97x = 79,718.21 × 32,610.61
  4. Step 4: Simplify right side
    57,765.97x = 2,599,659,456.21
  5. Step 5: Solve for x
    x = 2,599,659,456.21/57,765.97
  6. Step 6: Final answer
    x = 45,003.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.