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Finding the Fourth Proportional to 18,550.92, 25,601.68 and 11,481.48

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Solution

The fourth proportional to 18,550.92, 25,601.68 and 11,481.48 is: 15,845.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,550.92 : 25,601.68 = 11,481.48 : x
  2. Step 2: Convert to fraction form
    18,550.92/25,601.68 = 11,481.48/x
  3. Step 3: Cross multiply
    18,550.92x = 25,601.68 × 11,481.48
  4. Step 4: Simplify right side
    18,550.92x = 293,945,176.89
  5. Step 5: Solve for x
    x = 293,945,176.89/18,550.92
  6. Step 6: Final answer
    x = 15,845.32

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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.