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Finding the Fourth Proportional to 7,163.90, 10,747.22 and 3,268.32

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Solution

The fourth proportional to 7,163.90, 10,747.22 and 3,268.32 is: 4,903.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.90 : 10,747.22 = 3,268.32 : x
  2. Step 2: Convert to fraction form
    7,163.90/10,747.22 = 3,268.32/x
  3. Step 3: Cross multiply
    7,163.90x = 10,747.22 × 3,268.32
  4. Step 4: Simplify right side
    7,163.90x = 35,125,354.07
  5. Step 5: Solve for x
    x = 35,125,354.07/7,163.90
  6. Step 6: Final answer
    x = 4,903.11

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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.