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Finding the Fourth Proportional to 22,080.72, 33,122.16 and 7,286.88

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Solution

The fourth proportional to 22,080.72, 33,122.16 and 7,286.88 is: 10,930.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,080.72 : 33,122.16 = 7,286.88 : x
  2. Step 2: Convert to fraction form
    22,080.72/33,122.16 = 7,286.88/x
  3. Step 3: Cross multiply
    22,080.72x = 33,122.16 × 7,286.88
  4. Step 4: Simplify right side
    22,080.72x = 241,357,205.26
  5. Step 5: Solve for x
    x = 241,357,205.26/22,080.72
  6. Step 6: Final answer
    x = 10,930.68

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.