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Finding the Fourth Proportional to 57,151.20, 85,690.80 and 23,894.40

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Solution

The fourth proportional to 57,151.20, 85,690.80 and 23,894.40 is: 35,826.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,151.20 : 85,690.80 = 23,894.40 : x
  2. Step 2: Convert to fraction form
    57,151.20/85,690.80 = 23,894.40/x
  3. Step 3: Cross multiply
    57,151.20x = 85,690.80 × 23,894.40
  4. Step 4: Simplify right side
    57,151.20x = 2,047,530,251.52
  5. Step 5: Solve for x
    x = 2,047,530,251.52/57,151.20
  6. Step 6: Final answer
    x = 35,826.55

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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.