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Finding the Fourth Proportional to 18,524.94, 27,792.61 and 7,439.41

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Solution

The fourth proportional to 18,524.94, 27,792.61 and 7,439.41 is: 11,161.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,524.94 : 27,792.61 = 7,439.41 : x
  2. Step 2: Convert to fraction form
    18,524.94/27,792.61 = 7,439.41/x
  3. Step 3: Cross multiply
    18,524.94x = 27,792.61 × 7,439.41
  4. Step 4: Simplify right side
    18,524.94x = 206,760,664.80
  5. Step 5: Solve for x
    x = 206,760,664.80/18,524.94
  6. Step 6: Final answer
    x = 11,161.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.