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Finding the Fourth Proportional to 57,359.58, 86,040.81 and 27,771.90

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Solution

The fourth proportional to 57,359.58, 86,040.81 and 27,771.90 is: 41,658.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,359.58 : 86,040.81 = 27,771.90 : x
  2. Step 2: Convert to fraction form
    57,359.58/86,040.81 = 27,771.90/x
  3. Step 3: Cross multiply
    57,359.58x = 86,040.81 × 27,771.90
  4. Step 4: Simplify right side
    57,359.58x = 2,389,516,771.24
  5. Step 5: Solve for x
    x = 2,389,516,771.24/57,359.58
  6. Step 6: Final answer
    x = 41,658.55

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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.