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Finding the Fourth Proportional to 33,753.79, 50,571.91 and 21,919.39

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Solution

The fourth proportional to 33,753.79, 50,571.91 and 21,919.39 is: 32,840.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,753.79 : 50,571.91 = 21,919.39 : x
  2. Step 2: Convert to fraction form
    33,753.79/50,571.91 = 21,919.39/x
  3. Step 3: Cross multiply
    33,753.79x = 50,571.91 × 21,919.39
  4. Step 4: Simplify right side
    33,753.79x = 1,108,505,418.33
  5. Step 5: Solve for x
    x = 1,108,505,418.33/33,753.79
  6. Step 6: Final answer
    x = 32,840.92

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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.