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Finding the Fourth Proportional to 3,866.46, 5,794.62 and 1,786.17

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Solution

The fourth proportional to 3,866.46, 5,794.62 and 1,786.17 is: 2,676.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.46 : 5,794.62 = 1,786.17 : x
  2. Step 2: Convert to fraction form
    3,866.46/5,794.62 = 1,786.17/x
  3. Step 3: Cross multiply
    3,866.46x = 5,794.62 × 1,786.17
  4. Step 4: Simplify right side
    3,866.46x = 10,350,176.41
  5. Step 5: Solve for x
    x = 10,350,176.41/3,866.46
  6. Step 6: Final answer
    x = 2,676.91

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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.