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Finding the Fourth Proportional to 66,481.48, 91,744.70 and 36,267.44

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Solution

The fourth proportional to 66,481.48, 91,744.70 and 36,267.44 is: 50,049.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,481.48 : 91,744.70 = 36,267.44 : x
  2. Step 2: Convert to fraction form
    66,481.48/91,744.70 = 36,267.44/x
  3. Step 3: Cross multiply
    66,481.48x = 91,744.70 × 36,267.44
  4. Step 4: Simplify right side
    66,481.48x = 3,327,345,402.57
  5. Step 5: Solve for x
    x = 3,327,345,402.57/66,481.48
  6. Step 6: Final answer
    x = 50,049.21

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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.