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Finding the Fourth Proportional to 49,843.74, 68,745.49 and 31,940.42

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Solution

The fourth proportional to 49,843.74, 68,745.49 and 31,940.42 is: 44,052.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,843.74 : 68,745.49 = 31,940.42 : x
  2. Step 2: Convert to fraction form
    49,843.74/68,745.49 = 31,940.42/x
  3. Step 3: Cross multiply
    49,843.74x = 68,745.49 × 31,940.42
  4. Step 4: Simplify right side
    49,843.74x = 2,195,759,400.13
  5. Step 5: Solve for x
    x = 2,195,759,400.13/49,843.74
  6. Step 6: Final answer
    x = 44,052.86

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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.