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Finding the Fourth Proportional to 18,550.92, 27,835.38 and 8,161.32

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Solution

The fourth proportional to 18,550.92, 27,835.38 and 8,161.32 is: 12,245.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,550.92 : 27,835.38 = 8,161.32 : x
  2. Step 2: Convert to fraction form
    18,550.92/27,835.38 = 8,161.32/x
  3. Step 3: Cross multiply
    18,550.92x = 27,835.38 × 8,161.32
  4. Step 4: Simplify right side
    18,550.92x = 227,173,443.50
  5. Step 5: Solve for x
    x = 227,173,443.50/18,550.92
  6. Step 6: Final answer
    x = 12,245.94

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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.