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Finding the Fourth Proportional to 18,183.75, 25,093.59 and 11,110.13

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Solution

The fourth proportional to 18,183.75, 25,093.59 and 11,110.13 is: 15,331.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,183.75 : 25,093.59 = 11,110.13 : x
  2. Step 2: Convert to fraction form
    18,183.75/25,093.59 = 11,110.13/x
  3. Step 3: Cross multiply
    18,183.75x = 25,093.59 × 11,110.13
  4. Step 4: Simplify right side
    18,183.75x = 278,792,921.60
  5. Step 5: Solve for x
    x = 278,792,921.60/18,183.75
  6. Step 6: Final answer
    x = 15,331.98

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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.