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Finding the Fourth Proportional to 33,285.38, 49,935.38 and 12,508.88

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Solution

The fourth proportional to 33,285.38, 49,935.38 and 12,508.88 is: 18,766.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,285.38 : 49,935.38 = 12,508.88 : x
  2. Step 2: Convert to fraction form
    33,285.38/49,935.38 = 12,508.88/x
  3. Step 3: Cross multiply
    33,285.38x = 49,935.38 × 12,508.88
  4. Step 4: Simplify right side
    33,285.38x = 624,635,363.95
  5. Step 5: Solve for x
    x = 624,635,363.95/33,285.38
  6. Step 6: Final answer
    x = 18,766.06

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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.