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Finding the Fourth Proportional to 5,474.75, 8,217 and 2,554.70

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Solution

The fourth proportional to 5,474.75, 8,217 and 2,554.70 is: 3,834.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474.75 : 8,217 = 2,554.70 : x
  2. Step 2: Convert to fraction form
    5,474.75/8,217 = 2,554.70/x
  3. Step 3: Cross multiply
    5,474.75x = 8,217 × 2,554.70
  4. Step 4: Simplify right side
    5,474.75x = 20,991,928.82
  5. Step 5: Solve for x
    x = 20,991,928.82/5,474.75
  6. Step 6: Final answer
    x = 3,834.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.