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Finding the Fourth Proportional to 53,791.80, 80,687.70 and 41,335.80

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Solution

The fourth proportional to 53,791.80, 80,687.70 and 41,335.80 is: 62,003.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,791.80 : 80,687.70 = 41,335.80 : x
  2. Step 2: Convert to fraction form
    53,791.80/80,687.70 = 41,335.80/x
  3. Step 3: Cross multiply
    53,791.80x = 80,687.70 × 41,335.80
  4. Step 4: Simplify right side
    53,791.80x = 3,335,290,629.66
  5. Step 5: Solve for x
    x = 3,335,290,629.66/53,791.80
  6. Step 6: Final answer
    x = 62,003.70

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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.