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Finding the Fourth Proportional to 17,163.60, 25,745.40 and 13,664.40

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Solution

The fourth proportional to 17,163.60, 25,745.40 and 13,664.40 is: 20,496.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,163.60 : 25,745.40 = 13,664.40 : x
  2. Step 2: Convert to fraction form
    17,163.60/25,745.40 = 13,664.40/x
  3. Step 3: Cross multiply
    17,163.60x = 25,745.40 × 13,664.40
  4. Step 4: Simplify right side
    17,163.60x = 351,795,443.76
  5. Step 5: Solve for x
    x = 351,795,443.76/17,163.60
  6. Step 6: Final answer
    x = 20,496.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.