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Finding the Fourth Proportional to 3,967.37, 5,474.82 and 2,199

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Solution

The fourth proportional to 3,967.37, 5,474.82 and 2,199 is: 3,034.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.37 : 5,474.82 = 2,199 : x
  2. Step 2: Convert to fraction form
    3,967.37/5,474.82 = 2,199/x
  3. Step 3: Cross multiply
    3,967.37x = 5,474.82 × 2,199
  4. Step 4: Simplify right side
    3,967.37x = 12,039,129.18
  5. Step 5: Solve for x
    x = 12,039,129.18/3,967.37
  6. Step 6: Final answer
    x = 3,034.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.