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Finding the Fourth Proportional to 29,163.70, 43,745.55 and 18,082.90

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Solution

The fourth proportional to 29,163.70, 43,745.55 and 18,082.90 is: 27,124.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,163.70 : 43,745.55 = 18,082.90 : x
  2. Step 2: Convert to fraction form
    29,163.70/43,745.55 = 18,082.90/x
  3. Step 3: Cross multiply
    29,163.70x = 43,745.55 × 18,082.90
  4. Step 4: Simplify right side
    29,163.70x = 791,046,406.10
  5. Step 5: Solve for x
    x = 791,046,406.10/29,163.70
  6. Step 6: Final answer
    x = 27,124.35

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1.5x scale

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.