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Finding the Fourth Proportional to 6,829.22, 9,424.22 and 3,998.54

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Solution

The fourth proportional to 6,829.22, 9,424.22 and 3,998.54 is: 5,517.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,829.22 : 9,424.22 = 3,998.54 : x
  2. Step 2: Convert to fraction form
    6,829.22/9,424.22 = 3,998.54/x
  3. Step 3: Cross multiply
    6,829.22x = 9,424.22 × 3,998.54
  4. Step 4: Simplify right side
    6,829.22x = 37,683,120.64
  5. Step 5: Solve for x
    x = 37,683,120.64/6,829.22
  6. Step 6: Final answer
    x = 5,517.92

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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.