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Finding the Fourth Proportional to 13,183.43, 19,866.86 and 11,934.41

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Solution

The fourth proportional to 13,183.43, 19,866.86 and 11,934.41 is: 17,984.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.43 : 19,866.86 = 11,934.41 : x
  2. Step 2: Convert to fraction form
    13,183.43/19,866.86 = 11,934.41/x
  3. Step 3: Cross multiply
    13,183.43x = 19,866.86 × 11,934.41
  4. Step 4: Simplify right side
    13,183.43x = 237,099,252.65
  5. Step 5: Solve for x
    x = 237,099,252.65/13,183.43
  6. Step 6: Final answer
    x = 17,984.64

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.