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Finding the Fourth Proportional to 18,003.91, 24,844.21 and 11,289.25

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Solution

The fourth proportional to 18,003.91, 24,844.21 and 11,289.25 is: 15,578.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,003.91 : 24,844.21 = 11,289.25 : x
  2. Step 2: Convert to fraction form
    18,003.91/24,844.21 = 11,289.25/x
  3. Step 3: Cross multiply
    18,003.91x = 24,844.21 × 11,289.25
  4. Step 4: Simplify right side
    18,003.91x = 280,472,497.74
  5. Step 5: Solve for x
    x = 280,472,497.74/18,003.91
  6. Step 6: Final answer
    x = 15,578.42

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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.