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Finding the Fourth Proportional to 6,659.22, 9,192.94 and 5,163.68

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Solution

The fourth proportional to 6,659.22, 9,192.94 and 5,163.68 is: 7,128.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659.22 : 9,192.94 = 5,163.68 : x
  2. Step 2: Convert to fraction form
    6,659.22/9,192.94 = 5,163.68/x
  3. Step 3: Cross multiply
    6,659.22x = 9,192.94 × 5,163.68
  4. Step 4: Simplify right side
    6,659.22x = 47,469,400.42
  5. Step 5: Solve for x
    x = 47,469,400.42/6,659.22
  6. Step 6: Final answer
    x = 7,128.37

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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.