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Finding the Fourth Proportional to 57,061.89, 85,613.10 and 25,469.08

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Solution

The fourth proportional to 57,061.89, 85,613.10 and 25,469.08 is: 38,212.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,061.89 : 85,613.10 = 25,469.08 : x
  2. Step 2: Convert to fraction form
    57,061.89/85,613.10 = 25,469.08/x
  3. Step 3: Cross multiply
    57,061.89x = 85,613.10 × 25,469.08
  4. Step 4: Simplify right side
    57,061.89x = 2,180,486,892.95
  5. Step 5: Solve for x
    x = 2,180,486,892.95/57,061.89
  6. Step 6: Final answer
    x = 38,212.67

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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.