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Finding the Fourth Proportional to 18,608.73, 27,896.69 and 6,913.75

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Solution

The fourth proportional to 18,608.73, 27,896.69 and 6,913.75 is: 10,364.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608.73 : 27,896.69 = 6,913.75 : x
  2. Step 2: Convert to fraction form
    18,608.73/27,896.69 = 6,913.75/x
  3. Step 3: Cross multiply
    18,608.73x = 27,896.69 × 6,913.75
  4. Step 4: Simplify right side
    18,608.73x = 192,870,740.49
  5. Step 5: Solve for x
    x = 192,870,740.49/18,608.73
  6. Step 6: Final answer
    x = 10,364.53

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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.