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Finding the Fourth Proportional to 7,163.60, 10,745.40 and 2,233.20

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Solution

The fourth proportional to 7,163.60, 10,745.40 and 2,233.20 is: 3,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.60 : 10,745.40 = 2,233.20 : x
  2. Step 2: Convert to fraction form
    7,163.60/10,745.40 = 2,233.20/x
  3. Step 3: Cross multiply
    7,163.60x = 10,745.40 × 2,233.20
  4. Step 4: Simplify right side
    7,163.60x = 23,996,627.28
  5. Step 5: Solve for x
    x = 23,996,627.28/7,163.60
  6. Step 6: Final answer
    x = 3,349.80

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Similar ratio
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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.