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Finding the Fourth Proportional to 18,183.99, 25,093.09 and 11,013.82

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Solution

The fourth proportional to 18,183.99, 25,093.09 and 11,013.82 is: 15,198.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,183.99 : 25,093.09 = 11,013.82 : x
  2. Step 2: Convert to fraction form
    18,183.99/25,093.09 = 11,013.82/x
  3. Step 3: Cross multiply
    18,183.99x = 25,093.09 × 11,013.82
  4. Step 4: Simplify right side
    18,183.99x = 276,370,868.69
  5. Step 5: Solve for x
    x = 276,370,868.69/18,183.99
  6. Step 6: Final answer
    x = 15,198.58

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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.