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Finding the Fourth Proportional to 33,391.71, 50,137.74 and 31,786.74

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Solution

The fourth proportional to 33,391.71, 50,137.74 and 31,786.74 is: 47,727.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,391.71 : 50,137.74 = 31,786.74 : x
  2. Step 2: Convert to fraction form
    33,391.71/50,137.74 = 31,786.74/x
  3. Step 3: Cross multiply
    33,391.71x = 50,137.74 × 31,786.74
  4. Step 4: Simplify right side
    33,391.71x = 1,593,715,305.57
  5. Step 5: Solve for x
    x = 1,593,715,305.57/33,391.71
  6. Step 6: Final answer
    x = 47,727.87

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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.