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Finding the Fourth Proportional to 20,296.26, 28,008.66 and 11,344.14

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Solution

The fourth proportional to 20,296.26, 28,008.66 and 11,344.14 is: 15,654.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,296.26 : 28,008.66 = 11,344.14 : x
  2. Step 2: Convert to fraction form
    20,296.26/28,008.66 = 11,344.14/x
  3. Step 3: Cross multiply
    20,296.26x = 28,008.66 × 11,344.14
  4. Step 4: Simplify right side
    20,296.26x = 317,734,160.25
  5. Step 5: Solve for x
    x = 317,734,160.25/20,296.26
  6. Step 6: Final answer
    x = 15,654.81

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.