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Finding the Fourth Proportional to 57,149.70, 85,688.55 and 23,892.90

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Solution

The fourth proportional to 57,149.70, 85,688.55 and 23,892.90 is: 35,824.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,149.70 : 85,688.55 = 23,892.90 : x
  2. Step 2: Convert to fraction form
    57,149.70/85,688.55 = 23,892.90/x
  3. Step 3: Cross multiply
    57,149.70x = 85,688.55 × 23,892.90
  4. Step 4: Simplify right side
    57,149.70x = 2,047,347,956.30
  5. Step 5: Solve for x
    x = 2,047,347,956.30/57,149.70
  6. Step 6: Final answer
    x = 35,824.30

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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.