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Finding the Fourth Proportional to 41,267.20, 61,900.80 and 21,551.80

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Solution

The fourth proportional to 41,267.20, 61,900.80 and 21,551.80 is: 32,327.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,267.20 : 61,900.80 = 21,551.80 : x
  2. Step 2: Convert to fraction form
    41,267.20/61,900.80 = 21,551.80/x
  3. Step 3: Cross multiply
    41,267.20x = 61,900.80 × 21,551.80
  4. Step 4: Simplify right side
    41,267.20x = 1,334,073,661.44
  5. Step 5: Solve for x
    x = 1,334,073,661.44/41,267.20
  6. Step 6: Final answer
    x = 32,327.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.