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Finding the Fourth Proportional to 18,481.52, 27,727.60 and 8,626.64

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Solution

The fourth proportional to 18,481.52, 27,727.60 and 8,626.64 is: 12,942.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.52 : 27,727.60 = 8,626.64 : x
  2. Step 2: Convert to fraction form
    18,481.52/27,727.60 = 8,626.64/x
  3. Step 3: Cross multiply
    18,481.52x = 27,727.60 × 8,626.64
  4. Step 4: Simplify right side
    18,481.52x = 239,196,023.26
  5. Step 5: Solve for x
    x = 239,196,023.26/18,481.52
  6. Step 6: Final answer
    x = 12,942.44

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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.