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Finding the Fourth Proportional to 38,793.60, 58,190.40 and 26,983.80

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Solution

The fourth proportional to 38,793.60, 58,190.40 and 26,983.80 is: 40,475.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,793.60 : 58,190.40 = 26,983.80 : x
  2. Step 2: Convert to fraction form
    38,793.60/58,190.40 = 26,983.80/x
  3. Step 3: Cross multiply
    38,793.60x = 58,190.40 × 26,983.80
  4. Step 4: Simplify right side
    38,793.60x = 1,570,198,115.52
  5. Step 5: Solve for x
    x = 1,570,198,115.52/38,793.60
  6. Step 6: Final answer
    x = 40,475.70

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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.