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Finding the Fourth Proportional to 33,819.80, 50,729.70 and 13,043.30

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Solution

The fourth proportional to 33,819.80, 50,729.70 and 13,043.30 is: 19,564.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,819.80 : 50,729.70 = 13,043.30 : x
  2. Step 2: Convert to fraction form
    33,819.80/50,729.70 = 13,043.30/x
  3. Step 3: Cross multiply
    33,819.80x = 50,729.70 × 13,043.30
  4. Step 4: Simplify right side
    33,819.80x = 661,682,696.01
  5. Step 5: Solve for x
    x = 661,682,696.01/33,819.80
  6. Step 6: Final answer
    x = 19,564.95

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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.