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Finding the Fourth Proportional to 11,196.40, 16,794.52 and 3,405.21

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Solution

The fourth proportional to 11,196.40, 16,794.52 and 3,405.21 is: 5,107.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,196.40 : 16,794.52 = 3,405.21 : x
  2. Step 2: Convert to fraction form
    11,196.40/16,794.52 = 3,405.21/x
  3. Step 3: Cross multiply
    11,196.40x = 16,794.52 × 3,405.21
  4. Step 4: Simplify right side
    11,196.40x = 57,188,867.45
  5. Step 5: Solve for x
    x = 57,188,867.45/11,196.40
  6. Step 6: Final answer
    x = 5,107.79

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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.