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Finding the Fourth Proportional to 16,241.40, 22,413.78 and 9,167.40

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Solution

The fourth proportional to 16,241.40, 22,413.78 and 9,167.40 is: 12,651.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,241.40 : 22,413.78 = 9,167.40 : x
  2. Step 2: Convert to fraction form
    16,241.40/22,413.78 = 9,167.40/x
  3. Step 3: Cross multiply
    16,241.40x = 22,413.78 × 9,167.40
  4. Step 4: Simplify right side
    16,241.40x = 205,476,086.77
  5. Step 5: Solve for x
    x = 205,476,086.77/16,241.40
  6. Step 6: Final answer
    x = 12,651.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.