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Finding the Fourth Proportional to 57,234.60, 85,851.90 and 38,572.20

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Solution

The fourth proportional to 57,234.60, 85,851.90 and 38,572.20 is: 57,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,234.60 : 85,851.90 = 38,572.20 : x
  2. Step 2: Convert to fraction form
    57,234.60/85,851.90 = 38,572.20/x
  3. Step 3: Cross multiply
    57,234.60x = 85,851.90 × 38,572.20
  4. Step 4: Simplify right side
    57,234.60x = 3,311,496,657.18
  5. Step 5: Solve for x
    x = 3,311,496,657.18/57,234.60
  6. Step 6: Final answer
    x = 57,858.30

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1.5x scale

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.