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Finding the Fourth Proportional to 33,751.20, 50,529.60 and 20,629.20

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Solution

The fourth proportional to 33,751.20, 50,529.60 and 20,629.20 is: 30,884.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,751.20 : 50,529.60 = 20,629.20 : x
  2. Step 2: Convert to fraction form
    33,751.20/50,529.60 = 20,629.20/x
  3. Step 3: Cross multiply
    33,751.20x = 50,529.60 × 20,629.20
  4. Step 4: Simplify right side
    33,751.20x = 1,042,385,224.32
  5. Step 5: Solve for x
    x = 1,042,385,224.32/33,751.20
  6. Step 6: Final answer
    x = 30,884.39

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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.