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Finding the Fourth Proportional to 7,889.44, 11,839.44 and 3,272.44

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Solution

The fourth proportional to 7,889.44, 11,839.44 and 3,272.44 is: 4,910.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.44 : 11,839.44 = 3,272.44 : x
  2. Step 2: Convert to fraction form
    7,889.44/11,839.44 = 3,272.44/x
  3. Step 3: Cross multiply
    7,889.44x = 11,839.44 × 3,272.44
  4. Step 4: Simplify right side
    7,889.44x = 38,743,857.03
  5. Step 5: Solve for x
    x = 38,743,857.03/7,889.44
  6. Step 6: Final answer
    x = 4,910.85

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1.5x scale

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.