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Finding the Fourth Proportional to 57,791.90, 86,655.04 and 34,434.74

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Solution

The fourth proportional to 57,791.90, 86,655.04 and 34,434.74 is: 51,632.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,791.90 : 86,655.04 = 34,434.74 : x
  2. Step 2: Convert to fraction form
    57,791.90/86,655.04 = 34,434.74/x
  3. Step 3: Cross multiply
    57,791.90x = 86,655.04 × 34,434.74
  4. Step 4: Simplify right side
    57,791.90x = 2,983,943,902.64
  5. Step 5: Solve for x
    x = 2,983,943,902.64/57,791.90
  6. Step 6: Final answer
    x = 51,632.56

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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.