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Finding the Fourth Proportional to 33,297.78, 49,930.15 and 12,236.97

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Solution

The fourth proportional to 33,297.78, 49,930.15 and 12,236.97 is: 18,349.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,297.78 : 49,930.15 = 12,236.97 : x
  2. Step 2: Convert to fraction form
    33,297.78/49,930.15 = 12,236.97/x
  3. Step 3: Cross multiply
    33,297.78x = 49,930.15 × 12,236.97
  4. Step 4: Simplify right side
    33,297.78x = 610,993,747.65
  5. Step 5: Solve for x
    x = 610,993,747.65/33,297.78
  6. Step 6: Final answer
    x = 18,349.38

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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.