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Finding the Fourth Proportional to 57,230.60, 85,845.90 and 38,568.20

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Solution

The fourth proportional to 57,230.60, 85,845.90 and 38,568.20 is: 57,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,230.60 : 85,845.90 = 38,568.20 : x
  2. Step 2: Convert to fraction form
    57,230.60/85,845.90 = 38,568.20/x
  3. Step 3: Cross multiply
    57,230.60x = 85,845.90 × 38,568.20
  4. Step 4: Simplify right side
    57,230.60x = 3,310,921,840.38
  5. Step 5: Solve for x
    x = 3,310,921,840.38/57,230.60
  6. Step 6: Final answer
    x = 57,852.30

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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.