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Finding the Fourth Proportional to 66,481.97, 91,745.37 and 36,267.95

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Solution

The fourth proportional to 66,481.97, 91,745.37 and 36,267.95 is: 50,049.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,481.97 : 91,745.37 = 36,267.95 : x
  2. Step 2: Convert to fraction form
    66,481.97/91,745.37 = 36,267.95/x
  3. Step 3: Cross multiply
    66,481.97x = 91,745.37 × 36,267.95
  4. Step 4: Simplify right side
    66,481.97x = 3,327,416,721.25
  5. Step 5: Solve for x
    x = 3,327,416,721.25/66,481.97
  6. Step 6: Final answer
    x = 50,049.92

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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.