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Finding the Fourth Proportional to 16,912.52, 25,361.02 and 5,816.20

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Solution

The fourth proportional to 16,912.52, 25,361.02 and 5,816.20 is: 8,721.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,912.52 : 25,361.02 = 5,816.20 : x
  2. Step 2: Convert to fraction form
    16,912.52/25,361.02 = 5,816.20/x
  3. Step 3: Cross multiply
    16,912.52x = 25,361.02 × 5,816.20
  4. Step 4: Simplify right side
    16,912.52x = 147,504,764.52
  5. Step 5: Solve for x
    x = 147,504,764.52/16,912.52
  6. Step 6: Final answer
    x = 8,721.63

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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.