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Finding the Fourth Proportional to 6,876.36, 9,489.42 and 3,732.54

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Solution

The fourth proportional to 6,876.36, 9,489.42 and 3,732.54 is: 5,150.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,876.36 : 9,489.42 = 3,732.54 : x
  2. Step 2: Convert to fraction form
    6,876.36/9,489.42 = 3,732.54/x
  3. Step 3: Cross multiply
    6,876.36x = 9,489.42 × 3,732.54
  4. Step 4: Simplify right side
    6,876.36x = 35,419,639.73
  5. Step 5: Solve for x
    x = 35,419,639.73/6,876.36
  6. Step 6: Final answer
    x = 5,150.93

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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.