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Finding the Fourth Proportional to 3,872.34, 5,808.42 and 1,136.34

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Solution

The fourth proportional to 3,872.34, 5,808.42 and 1,136.34 is: 1,704.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.34 : 5,808.42 = 1,136.34 : x
  2. Step 2: Convert to fraction form
    3,872.34/5,808.42 = 1,136.34/x
  3. Step 3: Cross multiply
    3,872.34x = 5,808.42 × 1,136.34
  4. Step 4: Simplify right side
    3,872.34x = 6,600,339.98
  5. Step 5: Solve for x
    x = 6,600,339.98/3,872.34
  6. Step 6: Final answer
    x = 1,704.48

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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.