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Finding the Fourth Proportional to 6,889.25, 9,507.17 and 3,745.44

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Solution

The fourth proportional to 6,889.25, 9,507.17 and 3,745.44 is: 5,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889.25 : 9,507.17 = 3,745.44 : x
  2. Step 2: Convert to fraction form
    6,889.25/9,507.17 = 3,745.44/x
  3. Step 3: Cross multiply
    6,889.25x = 9,507.17 × 3,745.44
  4. Step 4: Simplify right side
    6,889.25x = 35,608,544.17
  5. Step 5: Solve for x
    x = 35,608,544.17/6,889.25
  6. Step 6: Final answer
    x = 5,168.71

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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.