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Finding the Fourth Proportional to 3,793.50, 5,691.05 and 1,161.22

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Solution

The fourth proportional to 3,793.50, 5,691.05 and 1,161.22 is: 1,742.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,793.50 : 5,691.05 = 1,161.22 : x
  2. Step 2: Convert to fraction form
    3,793.50/5,691.05 = 1,161.22/x
  3. Step 3: Cross multiply
    3,793.50x = 5,691.05 × 1,161.22
  4. Step 4: Simplify right side
    3,793.50x = 6,608,561.08
  5. Step 5: Solve for x
    x = 6,608,561.08/3,793.50
  6. Step 6: Final answer
    x = 1,742.07

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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.