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Finding the Fourth Proportional to 18,583.80, 27,843.22 and 15,483.72

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Solution

The fourth proportional to 18,583.80, 27,843.22 and 15,483.72 is: 23,198.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,583.80 : 27,843.22 = 15,483.72 : x
  2. Step 2: Convert to fraction form
    18,583.80/27,843.22 = 15,483.72/x
  3. Step 3: Cross multiply
    18,583.80x = 27,843.22 × 15,483.72
  4. Step 4: Simplify right side
    18,583.80x = 431,116,622.38
  5. Step 5: Solve for x
    x = 431,116,622.38/18,583.80
  6. Step 6: Final answer
    x = 23,198.52

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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.