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Finding the Fourth Proportional to 2,793.94, 3,856.20 and 1,614.85

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Solution

The fourth proportional to 2,793.94, 3,856.20 and 1,614.85 is: 2,228.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,793.94 : 3,856.20 = 1,614.85 : x
  2. Step 2: Convert to fraction form
    2,793.94/3,856.20 = 1,614.85/x
  3. Step 3: Cross multiply
    2,793.94x = 3,856.20 × 1,614.85
  4. Step 4: Simplify right side
    2,793.94x = 6,227,184.57
  5. Step 5: Solve for x
    x = 6,227,184.57/2,793.94
  6. Step 6: Final answer
    x = 2,228.82

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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.