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Finding the Fourth Proportional to 57,191.64, 85,791.48 and 17,743.56

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Solution

The fourth proportional to 57,191.64, 85,791.48 and 17,743.56 is: 26,616.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,191.64 : 85,791.48 = 17,743.56 : x
  2. Step 2: Convert to fraction form
    57,191.64/85,791.48 = 17,743.56/x
  3. Step 3: Cross multiply
    57,191.64x = 85,791.48 × 17,743.56
  4. Step 4: Simplify right side
    57,191.64x = 1,522,246,272.87
  5. Step 5: Solve for x
    x = 1,522,246,272.87/57,191.64
  6. Step 6: Final answer
    x = 26,616.59

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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.