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Finding the Fourth Proportional to 18,803.71, 28,198.27 and 10,033.84

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Solution

The fourth proportional to 18,803.71, 28,198.27 and 10,033.84 is: 15,046.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,803.71 : 28,198.27 = 10,033.84 : x
  2. Step 2: Convert to fraction form
    18,803.71/28,198.27 = 10,033.84/x
  3. Step 3: Cross multiply
    18,803.71x = 28,198.27 × 10,033.84
  4. Step 4: Simplify right side
    18,803.71x = 282,936,738.30
  5. Step 5: Solve for x
    x = 282,936,738.30/18,803.71
  6. Step 6: Final answer
    x = 15,046.86

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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.