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Finding the Fourth Proportional to 43,760.88, 65,662.92 and 18,793.80

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Solution

The fourth proportional to 43,760.88, 65,662.92 and 18,793.80 is: 28,199.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,760.88 : 65,662.92 = 18,793.80 : x
  2. Step 2: Convert to fraction form
    43,760.88/65,662.92 = 18,793.80/x
  3. Step 3: Cross multiply
    43,760.88x = 65,662.92 × 18,793.80
  4. Step 4: Simplify right side
    43,760.88x = 1,234,055,785.90
  5. Step 5: Solve for x
    x = 1,234,055,785.90/43,760.88
  6. Step 6: Final answer
    x = 28,199.98

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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.