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Finding the Fourth Proportional to 11,183.40, 15,110.55 and 11,183.40

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Solution

The fourth proportional to 11,183.40, 15,110.55 and 11,183.40 is: 15,110.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,183.40 : 15,110.55 = 11,183.40 : x
  2. Step 2: Convert to fraction form
    11,183.40/15,110.55 = 11,183.40/x
  3. Step 3: Cross multiply
    11,183.40x = 15,110.55 × 11,183.40
  4. Step 4: Simplify right side
    11,183.40x = 168,987,324.87
  5. Step 5: Solve for x
    x = 168,987,324.87/11,183.40
  6. Step 6: Final answer
    x = 15,110.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.