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Finding the Fourth Proportional to 17,843.72, 26,751.30 and 8,479.04

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Solution

The fourth proportional to 17,843.72, 26,751.30 and 8,479.04 is: 12,711.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,843.72 : 26,751.30 = 8,479.04 : x
  2. Step 2: Convert to fraction form
    17,843.72/26,751.30 = 8,479.04/x
  3. Step 3: Cross multiply
    17,843.72x = 26,751.30 × 8,479.04
  4. Step 4: Simplify right side
    17,843.72x = 226,825,342.75
  5. Step 5: Solve for x
    x = 226,825,342.75/17,843.72
  6. Step 6: Final answer
    x = 12,711.77

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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.