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Finding the Fourth Proportional to 33,990.65, 50,993.27 and 14,257.84

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Solution

The fourth proportional to 33,990.65, 50,993.27 and 14,257.84 is: 21,389.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,990.65 : 50,993.27 = 14,257.84 : x
  2. Step 2: Convert to fraction form
    33,990.65/50,993.27 = 14,257.84/x
  3. Step 3: Cross multiply
    33,990.65x = 50,993.27 × 14,257.84
  4. Step 4: Simplify right side
    33,990.65x = 727,053,629.77
  5. Step 5: Solve for x
    x = 727,053,629.77/33,990.65
  6. Step 6: Final answer
    x = 21,389.81

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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.