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Finding the Fourth Proportional to 18,394.19, 27,591.55 and 5,246.57

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Solution

The fourth proportional to 18,394.19, 27,591.55 and 5,246.57 is: 7,869.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394.19 : 27,591.55 = 5,246.57 : x
  2. Step 2: Convert to fraction form
    18,394.19/27,591.55 = 5,246.57/x
  3. Step 3: Cross multiply
    18,394.19x = 27,591.55 × 5,246.57
  4. Step 4: Simplify right side
    18,394.19x = 144,760,847.41
  5. Step 5: Solve for x
    x = 144,760,847.41/18,394.19
  6. Step 6: Final answer
    x = 7,869.92

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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.