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Finding the Fourth Proportional to 19,908.99, 29,863.18 and 5,869.97

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Solution

The fourth proportional to 19,908.99, 29,863.18 and 5,869.97 is: 8,804.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,908.99 : 29,863.18 = 5,869.97 : x
  2. Step 2: Convert to fraction form
    19,908.99/29,863.18 = 5,869.97/x
  3. Step 3: Cross multiply
    19,908.99x = 29,863.18 × 5,869.97
  4. Step 4: Simplify right side
    19,908.99x = 175,295,940.71
  5. Step 5: Solve for x
    x = 175,295,940.71/19,908.99
  6. Step 6: Final answer
    x = 8,804.86

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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.