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Finding the Fourth Proportional to 3,892.33, 5,838.06 and 1,393.41

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Solution

The fourth proportional to 3,892.33, 5,838.06 and 1,393.41 is: 2,089.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.33 : 5,838.06 = 1,393.41 : x
  2. Step 2: Convert to fraction form
    3,892.33/5,838.06 = 1,393.41/x
  3. Step 3: Cross multiply
    3,892.33x = 5,838.06 × 1,393.41
  4. Step 4: Simplify right side
    3,892.33x = 8,134,811.18
  5. Step 5: Solve for x
    x = 8,134,811.18/3,892.33
  6. Step 6: Final answer
    x = 2,089.96

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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.