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Finding the Fourth Proportional to 57,353.22, 86,074.02 and 28,919.22

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Solution

The fourth proportional to 57,353.22, 86,074.02 and 28,919.22 is: 43,401.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,353.22 : 86,074.02 = 28,919.22 : x
  2. Step 2: Convert to fraction form
    57,353.22/86,074.02 = 28,919.22/x
  3. Step 3: Cross multiply
    57,353.22x = 86,074.02 × 28,919.22
  4. Step 4: Simplify right side
    57,353.22x = 2,489,193,520.66
  5. Step 5: Solve for x
    x = 2,489,193,520.66/57,353.22
  6. Step 6: Final answer
    x = 43,401.11

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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.