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Finding the Fourth Proportional to 3,745.84, 5,163.84 and 2,749.36

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Solution

The fourth proportional to 3,745.84, 5,163.84 and 2,749.36 is: 3,790.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.84 : 5,163.84 = 2,749.36 : x
  2. Step 2: Convert to fraction form
    3,745.84/5,163.84 = 2,749.36/x
  3. Step 3: Cross multiply
    3,745.84x = 5,163.84 × 2,749.36
  4. Step 4: Simplify right side
    3,745.84x = 14,197,255.14
  5. Step 5: Solve for x
    x = 14,197,255.14/3,745.84
  6. Step 6: Final answer
    x = 3,790.14

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1.5x scale

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.