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Finding the Fourth Proportional to 3,793.72, 5,235.48 and 3,163.19

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Solution

The fourth proportional to 3,793.72, 5,235.48 and 3,163.19 is: 4,365.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,793.72 : 5,235.48 = 3,163.19 : x
  2. Step 2: Convert to fraction form
    3,793.72/5,235.48 = 3,163.19/x
  3. Step 3: Cross multiply
    3,793.72x = 5,235.48 × 3,163.19
  4. Step 4: Simplify right side
    3,793.72x = 16,560,811.44
  5. Step 5: Solve for x
    x = 16,560,811.44/3,793.72
  6. Step 6: Final answer
    x = 4,365.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.