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Finding the Fourth Proportional to 40,791.62, 61,180.50 and 11,202.50

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Solution

The fourth proportional to 40,791.62, 61,180.50 and 11,202.50 is: 16,801.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,791.62 : 61,180.50 = 11,202.50 : x
  2. Step 2: Convert to fraction form
    40,791.62/61,180.50 = 11,202.50/x
  3. Step 3: Cross multiply
    40,791.62x = 61,180.50 × 11,202.50
  4. Step 4: Simplify right side
    40,791.62x = 685,374,551.25
  5. Step 5: Solve for x
    x = 685,374,551.25/40,791.62
  6. Step 6: Final answer
    x = 16,801.85

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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.