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Finding the Fourth Proportional to 18,568.20, 27,891.18 and 15,652.20

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Solution

The fourth proportional to 18,568.20, 27,891.18 and 15,652.20 is: 23,511.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,568.20 : 27,891.18 = 15,652.20 : x
  2. Step 2: Convert to fraction form
    18,568.20/27,891.18 = 15,652.20/x
  3. Step 3: Cross multiply
    18,568.20x = 27,891.18 × 15,652.20
  4. Step 4: Simplify right side
    18,568.20x = 436,558,327.60
  5. Step 5: Solve for x
    x = 436,558,327.60/18,568.20
  6. Step 6: Final answer
    x = 23,511.07

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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.