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Finding the Fourth Proportional to 33,217.60, 49,801.60 and 20,067.20

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Solution

The fourth proportional to 33,217.60, 49,801.60 and 20,067.20 is: 30,085.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,217.60 : 49,801.60 = 20,067.20 : x
  2. Step 2: Convert to fraction form
    33,217.60/49,801.60 = 20,067.20/x
  3. Step 3: Cross multiply
    33,217.60x = 49,801.60 × 20,067.20
  4. Step 4: Simplify right side
    33,217.60x = 999,378,667.52
  5. Step 5: Solve for x
    x = 999,378,667.52/33,217.60
  6. Step 6: Final answer
    x = 30,085.82

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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.