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Finding the Fourth Proportional to 19,744.41, 29,621.48 and 13,912.41

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Solution

The fourth proportional to 19,744.41, 29,621.48 and 13,912.41 is: 20,872.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,744.41 : 29,621.48 = 13,912.41 : x
  2. Step 2: Convert to fraction form
    19,744.41/29,621.48 = 13,912.41/x
  3. Step 3: Cross multiply
    19,744.41x = 29,621.48 × 13,912.41
  4. Step 4: Simplify right side
    19,744.41x = 412,106,174.57
  5. Step 5: Solve for x
    x = 412,106,174.57/19,744.41
  6. Step 6: Final answer
    x = 20,872.04

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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.