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Finding the Fourth Proportional to 3,967.44, 5,474.91 and 2,174.88

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Solution

The fourth proportional to 3,967.44, 5,474.91 and 2,174.88 is: 3,001.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.44 : 5,474.91 = 2,174.88 : x
  2. Step 2: Convert to fraction form
    3,967.44/5,474.91 = 2,174.88/x
  3. Step 3: Cross multiply
    3,967.44x = 5,474.91 × 2,174.88
  4. Step 4: Simplify right side
    3,967.44x = 11,907,272.26
  5. Step 5: Solve for x
    x = 11,907,272.26/3,967.44
  6. Step 6: Final answer
    x = 3,001.25

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1.5x scale

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.