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Finding the Fourth Proportional to 5,751.55, 8,616.38 and 2,974.06

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Solution

The fourth proportional to 5,751.55, 8,616.38 and 2,974.06 is: 4,455.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,751.55 : 8,616.38 = 2,974.06 : x
  2. Step 2: Convert to fraction form
    5,751.55/8,616.38 = 2,974.06/x
  3. Step 3: Cross multiply
    5,751.55x = 8,616.38 × 2,974.06
  4. Step 4: Simplify right side
    5,751.55x = 25,625,573.15
  5. Step 5: Solve for x
    x = 25,625,573.15/5,751.55
  6. Step 6: Final answer
    x = 4,455.42

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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.