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Finding the Fourth Proportional to 43,662.80, 65,591.40 and 41,891.60

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Solution

The fourth proportional to 43,662.80, 65,591.40 and 41,891.60 is: 62,930.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,662.80 : 65,591.40 = 41,891.60 : x
  2. Step 2: Convert to fraction form
    43,662.80/65,591.40 = 41,891.60/x
  3. Step 3: Cross multiply
    43,662.80x = 65,591.40 × 41,891.60
  4. Step 4: Simplify right side
    43,662.80x = 2,747,728,692.24
  5. Step 5: Solve for x
    x = 2,747,728,692.24/43,662.80
  6. Step 6: Final answer
    x = 62,930.66

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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.