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Finding the Fourth Proportional to 3,473.79, 5,211.72 and 1,625.97

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Solution

The fourth proportional to 3,473.79, 5,211.72 and 1,625.97 is: 2,439.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,473.79 : 5,211.72 = 1,625.97 : x
  2. Step 2: Convert to fraction form
    3,473.79/5,211.72 = 1,625.97/x
  3. Step 3: Cross multiply
    3,473.79x = 5,211.72 × 1,625.97
  4. Step 4: Simplify right side
    3,473.79x = 8,474,100.37
  5. Step 5: Solve for x
    x = 8,474,100.37/3,473.79
  6. Step 6: Final answer
    x = 2,439.44

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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.