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Finding the Fourth Proportional to 18,476.65, 27,716.60 and 6,789.97

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Solution

The fourth proportional to 18,476.65, 27,716.60 and 6,789.97 is: 10,185.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,476.65 : 27,716.60 = 6,789.97 : x
  2. Step 2: Convert to fraction form
    18,476.65/27,716.60 = 6,789.97/x
  3. Step 3: Cross multiply
    18,476.65x = 27,716.60 × 6,789.97
  4. Step 4: Simplify right side
    18,476.65x = 188,194,882.50
  5. Step 5: Solve for x
    x = 188,194,882.50/18,476.65
  6. Step 6: Final answer
    x = 10,185.55

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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.