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Finding the Fourth Proportional to 18,843.68, 28,250.93 and 10,934.03

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Solution

The fourth proportional to 18,843.68, 28,250.93 and 10,934.03 is: 16,392.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.68 : 28,250.93 = 10,934.03 : x
  2. Step 2: Convert to fraction form
    18,843.68/28,250.93 = 10,934.03/x
  3. Step 3: Cross multiply
    18,843.68x = 28,250.93 × 10,934.03
  4. Step 4: Simplify right side
    18,843.68x = 308,896,320.22
  5. Step 5: Solve for x
    x = 308,896,320.22/18,843.68
  6. Step 6: Final answer
    x = 16,392.57

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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.