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Finding the Fourth Proportional to 17,161.10, 25,742.10 and 5,474.32

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Solution

The fourth proportional to 17,161.10, 25,742.10 and 5,474.32 is: 8,211.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,161.10 : 25,742.10 = 5,474.32 : x
  2. Step 2: Convert to fraction form
    17,161.10/25,742.10 = 5,474.32/x
  3. Step 3: Cross multiply
    17,161.10x = 25,742.10 × 5,474.32
  4. Step 4: Simplify right side
    17,161.10x = 140,920,449.05
  5. Step 5: Solve for x
    x = 140,920,449.05/17,161.10
  6. Step 6: Final answer
    x = 8,211.62

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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.