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Finding the Fourth Proportional to 11,474.54, 17,213.52 and 4,078.40

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Solution

The fourth proportional to 11,474.54, 17,213.52 and 4,078.40 is: 6,118.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,474.54 : 17,213.52 = 4,078.40 : x
  2. Step 2: Convert to fraction form
    11,474.54/17,213.52 = 4,078.40/x
  3. Step 3: Cross multiply
    11,474.54x = 17,213.52 × 4,078.40
  4. Step 4: Simplify right side
    11,474.54x = 70,203,619.97
  5. Step 5: Solve for x
    x = 70,203,619.97/11,474.54
  6. Step 6: Final answer
    x = 6,118.21

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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.