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Finding the Fourth Proportional to 5,571.81, 8,358.41 and 1,874.43

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Solution

The fourth proportional to 5,571.81, 8,358.41 and 1,874.43 is: 2,811.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.81 : 8,358.41 = 1,874.43 : x
  2. Step 2: Convert to fraction form
    5,571.81/8,358.41 = 1,874.43/x
  3. Step 3: Cross multiply
    5,571.81x = 8,358.41 × 1,874.43
  4. Step 4: Simplify right side
    5,571.81x = 15,667,254.46
  5. Step 5: Solve for x
    x = 15,667,254.46/5,571.81
  6. Step 6: Final answer
    x = 2,811.88

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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.