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Finding the Fourth Proportional to 3,793.76, 5,691.77 and 1,946.18

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Solution

The fourth proportional to 3,793.76, 5,691.77 and 1,946.18 is: 2,919.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,793.76 : 5,691.77 = 1,946.18 : x
  2. Step 2: Convert to fraction form
    3,793.76/5,691.77 = 1,946.18/x
  3. Step 3: Cross multiply
    3,793.76x = 5,691.77 × 1,946.18
  4. Step 4: Simplify right side
    3,793.76x = 11,077,208.94
  5. Step 5: Solve for x
    x = 11,077,208.94/3,793.76
  6. Step 6: Final answer
    x = 2,919.85

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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.