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Finding the Fourth Proportional to 61,239.67, 91,842.10 and 23,791.75

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Solution

The fourth proportional to 61,239.67, 91,842.10 and 23,791.75 is: 35,680.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,239.67 : 91,842.10 = 23,791.75 : x
  2. Step 2: Convert to fraction form
    61,239.67/91,842.10 = 23,791.75/x
  3. Step 3: Cross multiply
    61,239.67x = 91,842.10 × 23,791.75
  4. Step 4: Simplify right side
    61,239.67x = 2,185,084,282.68
  5. Step 5: Solve for x
    x = 2,185,084,282.68/61,239.67
  6. Step 6: Final answer
    x = 35,680.86

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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.