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Finding the Fourth Proportional to 4,866.81, 6,719.42 and 3,745.77

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Solution

The fourth proportional to 4,866.81, 6,719.42 and 3,745.77 is: 5,171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,866.81 : 6,719.42 = 3,745.77 : x
  2. Step 2: Convert to fraction form
    4,866.81/6,719.42 = 3,745.77/x
  3. Step 3: Cross multiply
    4,866.81x = 6,719.42 × 3,745.77
  4. Step 4: Simplify right side
    4,866.81x = 25,169,401.85
  5. Step 5: Solve for x
    x = 25,169,401.85/4,866.81
  6. Step 6: Final answer
    x = 5,171.64

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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.