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Finding the Fourth Proportional to 17,921.25, 26,882.01 and 5,609.25

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Solution

The fourth proportional to 17,921.25, 26,882.01 and 5,609.25 is: 8,413.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,921.25 : 26,882.01 = 5,609.25 : x
  2. Step 2: Convert to fraction form
    17,921.25/26,882.01 = 5,609.25/x
  3. Step 3: Cross multiply
    17,921.25x = 26,882.01 × 5,609.25
  4. Step 4: Simplify right side
    17,921.25x = 150,787,914.59
  5. Step 5: Solve for x
    x = 150,787,914.59/17,921.25
  6. Step 6: Final answer
    x = 8,413.92

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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.