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Finding the Fourth Proportional to 42,791.32, 59,042 and 25,791.04

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Solution

The fourth proportional to 42,791.32, 59,042 and 25,791.04 is: 35,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,791.32 : 59,042 = 25,791.04 : x
  2. Step 2: Convert to fraction form
    42,791.32/59,042 = 25,791.04/x
  3. Step 3: Cross multiply
    42,791.32x = 59,042 × 25,791.04
  4. Step 4: Simplify right side
    42,791.32x = 1,522,754,583.68
  5. Step 5: Solve for x
    x = 1,522,754,583.68/42,791.32
  6. Step 6: Final answer
    x = 35,585.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.