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Finding the Fourth Proportional to 33,879.64, 50,811.26 and 14,147.48

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Solution

The fourth proportional to 33,879.64, 50,811.26 and 14,147.48 is: 21,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,879.64 : 50,811.26 = 14,147.48 : x
  2. Step 2: Convert to fraction form
    33,879.64/50,811.26 = 14,147.48/x
  3. Step 3: Cross multiply
    33,879.64x = 50,811.26 × 14,147.48
  4. Step 4: Simplify right side
    33,879.64x = 718,851,284.62
  5. Step 5: Solve for x
    x = 718,851,284.62/33,879.64
  6. Step 6: Final answer
    x = 21,217.80

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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.