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Finding the Fourth Proportional to 33,399.53, 50,101.72 and 11,212.72

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Solution

The fourth proportional to 33,399.53, 50,101.72 and 11,212.72 is: 16,819.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,399.53 : 50,101.72 = 11,212.72 : x
  2. Step 2: Convert to fraction form
    33,399.53/50,101.72 = 11,212.72/x
  3. Step 3: Cross multiply
    33,399.53x = 50,101.72 × 11,212.72
  4. Step 4: Simplify right side
    33,399.53x = 561,776,557.88
  5. Step 5: Solve for x
    x = 561,776,557.88/33,399.53
  6. Step 6: Final answer
    x = 16,819.89

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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.