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Finding the Fourth Proportional to 13,568.08, 20,359.68 and 7,327.96

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Solution

The fourth proportional to 13,568.08, 20,359.68 and 7,327.96 is: 10,996.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.08 : 20,359.68 = 7,327.96 : x
  2. Step 2: Convert to fraction form
    13,568.08/20,359.68 = 7,327.96/x
  3. Step 3: Cross multiply
    13,568.08x = 20,359.68 × 7,327.96
  4. Step 4: Simplify right side
    13,568.08x = 149,194,920.65
  5. Step 5: Solve for x
    x = 149,194,920.65/13,568.08
  6. Step 6: Final answer
    x = 10,996.02

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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.