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Finding the Fourth Proportional to 19,763.44, 29,650.32 and 5,912.44

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Solution

The fourth proportional to 19,763.44, 29,650.32 and 5,912.44 is: 8,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,763.44 : 29,650.32 = 5,912.44 : x
  2. Step 2: Convert to fraction form
    19,763.44/29,650.32 = 5,912.44/x
  3. Step 3: Cross multiply
    19,763.44x = 29,650.32 × 5,912.44
  4. Step 4: Simplify right side
    19,763.44x = 175,305,737.98
  5. Step 5: Solve for x
    x = 175,305,737.98/19,763.44
  6. Step 6: Final answer
    x = 8,870.20

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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.