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Finding the Fourth Proportional to 33,286.38, 49,936.88 and 12,509.88

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Solution

The fourth proportional to 33,286.38, 49,936.88 and 12,509.88 is: 18,767.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,286.38 : 49,936.88 = 12,509.88 : x
  2. Step 2: Convert to fraction form
    33,286.38/49,936.88 = 12,509.88/x
  3. Step 3: Cross multiply
    33,286.38x = 49,936.88 × 12,509.88
  4. Step 4: Simplify right side
    33,286.38x = 624,704,376.37
  5. Step 5: Solve for x
    x = 624,704,376.37/33,286.38
  6. Step 6: Final answer
    x = 18,767.57

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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.