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Finding the Fourth Proportional to 7,863.99, 11,794.14 and 3,479.04

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Solution

The fourth proportional to 7,863.99, 11,794.14 and 3,479.04 is: 5,217.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.99 : 11,794.14 = 3,479.04 : x
  2. Step 2: Convert to fraction form
    7,863.99/11,794.14 = 3,479.04/x
  3. Step 3: Cross multiply
    7,863.99x = 11,794.14 × 3,479.04
  4. Step 4: Simplify right side
    7,863.99x = 41,032,284.83
  5. Step 5: Solve for x
    x = 41,032,284.83/7,863.99
  6. Step 6: Final answer
    x = 5,217.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.