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Finding the Fourth Proportional to 8,479.54, 11,713.01 and 7,067.86

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Solution

The fourth proportional to 8,479.54, 11,713.01 and 7,067.86 is: 9,763.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.54 : 11,713.01 = 7,067.86 : x
  2. Step 2: Convert to fraction form
    8,479.54/11,713.01 = 7,067.86/x
  3. Step 3: Cross multiply
    8,479.54x = 11,713.01 × 7,067.86
  4. Step 4: Simplify right side
    8,479.54x = 82,785,850.24
  5. Step 5: Solve for x
    x = 82,785,850.24/8,479.54
  6. Step 6: Final answer
    x = 9,763.02

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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.