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Finding the Fourth Proportional to 3,962.56, 5,940.12 and 1,363.64

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Solution

The fourth proportional to 3,962.56, 5,940.12 and 1,363.64 is: 2,044.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,962.56 : 5,940.12 = 1,363.64 : x
  2. Step 2: Convert to fraction form
    3,962.56/5,940.12 = 1,363.64/x
  3. Step 3: Cross multiply
    3,962.56x = 5,940.12 × 1,363.64
  4. Step 4: Simplify right side
    3,962.56x = 8,100,185.24
  5. Step 5: Solve for x
    x = 8,100,185.24/3,962.56
  6. Step 6: Final answer
    x = 2,044.18

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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.