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Finding the Fourth Proportional to 57,422.58, 86,100.72 and 22,321.20

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Solution

The fourth proportional to 57,422.58, 86,100.72 and 22,321.20 is: 33,468.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,422.58 : 86,100.72 = 22,321.20 : x
  2. Step 2: Convert to fraction form
    57,422.58/86,100.72 = 22,321.20/x
  3. Step 3: Cross multiply
    57,422.58x = 86,100.72 × 22,321.20
  4. Step 4: Simplify right side
    57,422.58x = 1,921,871,391.26
  5. Step 5: Solve for x
    x = 1,921,871,391.26/57,422.58
  6. Step 6: Final answer
    x = 33,468.91

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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.