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Finding the Fourth Proportional to 18,549.87, 27,821.79 and 6,069.71

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Solution

The fourth proportional to 18,549.87, 27,821.79 and 6,069.71 is: 9,103.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,549.87 : 27,821.79 = 6,069.71 : x
  2. Step 2: Convert to fraction form
    18,549.87/27,821.79 = 6,069.71/x
  3. Step 3: Cross multiply
    18,549.87x = 27,821.79 × 6,069.71
  4. Step 4: Simplify right side
    18,549.87x = 168,870,196.98
  5. Step 5: Solve for x
    x = 168,870,196.98/18,549.87
  6. Step 6: Final answer
    x = 9,103.58

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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.