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Finding the Fourth Proportional to 12,552.40, 18,850.20 and 12,163.60

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Solution

The fourth proportional to 12,552.40, 18,850.20 and 12,163.60 is: 18,266.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,552.40 : 18,850.20 = 12,163.60 : x
  2. Step 2: Convert to fraction form
    12,552.40/18,850.20 = 12,163.60/x
  3. Step 3: Cross multiply
    12,552.40x = 18,850.20 × 12,163.60
  4. Step 4: Simplify right side
    12,552.40x = 229,286,292.72
  5. Step 5: Solve for x
    x = 229,286,292.72/12,552.40
  6. Step 6: Final answer
    x = 18,266.33

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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.