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Finding the Fourth Proportional to 33,939.52, 50,863.16 and 21,605.44

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Solution

The fourth proportional to 33,939.52, 50,863.16 and 21,605.44 is: 32,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,939.52 : 50,863.16 = 21,605.44 : x
  2. Step 2: Convert to fraction form
    33,939.52/50,863.16 = 21,605.44/x
  3. Step 3: Cross multiply
    33,939.52x = 50,863.16 × 21,605.44
  4. Step 4: Simplify right side
    33,939.52x = 1,098,920,951.59
  5. Step 5: Solve for x
    x = 1,098,920,951.59/33,939.52
  6. Step 6: Final answer
    x = 32,378.80

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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.