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Finding the Fourth Proportional to 33,238.92, 49,843.81 and 12,447.84

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Solution

The fourth proportional to 33,238.92, 49,843.81 and 12,447.84 is: 18,666.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,238.92 : 49,843.81 = 12,447.84 : x
  2. Step 2: Convert to fraction form
    33,238.92/49,843.81 = 12,447.84/x
  3. Step 3: Cross multiply
    33,238.92x = 49,843.81 × 12,447.84
  4. Step 4: Simplify right side
    33,238.92x = 620,447,904.33
  5. Step 5: Solve for x
    x = 620,447,904.33/33,238.92
  6. Step 6: Final answer
    x = 18,666.31

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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.