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Finding the Fourth Proportional to 38,793.60, 58,276.80 and 37,219.20

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Solution

The fourth proportional to 38,793.60, 58,276.80 and 37,219.20 is: 55,911.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,793.60 : 58,276.80 = 37,219.20 : x
  2. Step 2: Convert to fraction form
    38,793.60/58,276.80 = 37,219.20/x
  3. Step 3: Cross multiply
    38,793.60x = 58,276.80 × 37,219.20
  4. Step 4: Simplify right side
    38,793.60x = 2,169,015,874.56
  5. Step 5: Solve for x
    x = 2,169,015,874.56/38,793.60
  6. Step 6: Final answer
    x = 55,911.69

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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.