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Finding the Fourth Proportional to 17,231.40, 25,850.70 and 5,545.80

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Solution

The fourth proportional to 17,231.40, 25,850.70 and 5,545.80 is: 8,319.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,231.40 : 25,850.70 = 5,545.80 : x
  2. Step 2: Convert to fraction form
    17,231.40/25,850.70 = 5,545.80/x
  3. Step 3: Cross multiply
    17,231.40x = 25,850.70 × 5,545.80
  4. Step 4: Simplify right side
    17,231.40x = 143,362,812.06
  5. Step 5: Solve for x
    x = 143,362,812.06/17,231.40
  6. Step 6: Final answer
    x = 8,319.86

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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.