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Finding the Fourth Proportional to 6,708.69, 9,258.30 and 3,724.43

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Solution

The fourth proportional to 6,708.69, 9,258.30 and 3,724.43 is: 5,139.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,708.69 : 9,258.30 = 3,724.43 : x
  2. Step 2: Convert to fraction form
    6,708.69/9,258.30 = 3,724.43/x
  3. Step 3: Cross multiply
    6,708.69x = 9,258.30 × 3,724.43
  4. Step 4: Simplify right side
    6,708.69x = 34,481,843.98
  5. Step 5: Solve for x
    x = 34,481,843.98/6,708.69
  6. Step 6: Final answer
    x = 5,139.88

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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.