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Finding the Fourth Proportional to 49,793.94, 68,711.49 and 28,568.70

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Solution

The fourth proportional to 49,793.94, 68,711.49 and 28,568.70 is: 39,422.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,793.94 : 68,711.49 = 28,568.70 : x
  2. Step 2: Convert to fraction form
    49,793.94/68,711.49 = 28,568.70/x
  3. Step 3: Cross multiply
    49,793.94x = 68,711.49 × 28,568.70
  4. Step 4: Simplify right side
    49,793.94x = 1,962,997,944.36
  5. Step 5: Solve for x
    x = 1,962,997,944.36/49,793.94
  6. Step 6: Final answer
    x = 39,422.43

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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.