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Finding the Fourth Proportional to 20,151.00, 27,806.17 and 11,651.83

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Solution

The fourth proportional to 20,151.00, 27,806.17 and 11,651.83 is: 16,078.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.00 : 27,806.17 = 11,651.83 : x
  2. Step 2: Convert to fraction form
    20,151.00/27,806.17 = 11,651.83/x
  3. Step 3: Cross multiply
    20,151.00x = 27,806.17 × 11,651.83
  4. Step 4: Simplify right side
    20,151.00x = 323,992,806.18
  5. Step 5: Solve for x
    x = 323,992,806.18/20,151.00
  6. Step 6: Final answer
    x = 16,078.25

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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.