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Finding the Fourth Proportional to 13,167, 19,760.22 and 6,241.50

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Solution

The fourth proportional to 13,167, 19,760.22 and 6,241.50 is: 9,366.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167 : 19,760.22 = 6,241.50 : x
  2. Step 2: Convert to fraction form
    13,167/19,760.22 = 6,241.50/x
  3. Step 3: Cross multiply
    13,167x = 19,760.22 × 6,241.50
  4. Step 4: Simplify right side
    13,167x = 123,333,413.13
  5. Step 5: Solve for x
    x = 123,333,413.13/13,167
  6. Step 6: Final answer
    x = 9,366.86

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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.