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Finding the Fourth Proportional to 61,192.60, 91,791.15 and 16,822.82

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Solution

The fourth proportional to 61,192.60, 91,791.15 and 16,822.82 is: 25,234.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,192.60 : 91,791.15 = 16,822.82 : x
  2. Step 2: Convert to fraction form
    61,192.60/91,791.15 = 16,822.82/x
  3. Step 3: Cross multiply
    61,192.60x = 91,791.15 × 16,822.82
  4. Step 4: Simplify right side
    61,192.60x = 1,544,185,994.04
  5. Step 5: Solve for x
    x = 1,544,185,994.04/61,192.60
  6. Step 6: Final answer
    x = 25,234.85

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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.