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Finding the Fourth Proportional to 19,350.40, 29,025.60 and 17,163.40

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Solution

The fourth proportional to 19,350.40, 29,025.60 and 17,163.40 is: 25,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,350.40 : 29,025.60 = 17,163.40 : x
  2. Step 2: Convert to fraction form
    19,350.40/29,025.60 = 17,163.40/x
  3. Step 3: Cross multiply
    19,350.40x = 29,025.60 × 17,163.40
  4. Step 4: Simplify right side
    19,350.40x = 498,177,983.04
  5. Step 5: Solve for x
    x = 498,177,983.04/19,350.40
  6. Step 6: Final answer
    x = 25,745.10

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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.