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Finding the Fourth Proportional to 57,720.28, 86,629.02 and 22,684.54

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Solution

The fourth proportional to 57,720.28, 86,629.02 and 22,684.54 is: 34,045.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,720.28 : 86,629.02 = 22,684.54 : x
  2. Step 2: Convert to fraction form
    57,720.28/86,629.02 = 22,684.54/x
  3. Step 3: Cross multiply
    57,720.28x = 86,629.02 × 22,684.54
  4. Step 4: Simplify right side
    57,720.28x = 1,965,139,469.35
  5. Step 5: Solve for x
    x = 1,965,139,469.35/57,720.28
  6. Step 6: Final answer
    x = 34,045.91

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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.