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Finding the Fourth Proportional to 3,762.43, 5,192.11 and 2,106.43

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Solution

The fourth proportional to 3,762.43, 5,192.11 and 2,106.43 is: 2,906.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,762.43 : 5,192.11 = 2,106.43 : x
  2. Step 2: Convert to fraction form
    3,762.43/5,192.11 = 2,106.43/x
  3. Step 3: Cross multiply
    3,762.43x = 5,192.11 × 2,106.43
  4. Step 4: Simplify right side
    3,762.43x = 10,936,816.27
  5. Step 5: Solve for x
    x = 10,936,816.27/3,762.43
  6. Step 6: Final answer
    x = 2,906.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.