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Finding the Fourth Proportional to 16,241.87, 22,413.86 and 8,789.87

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Solution

The fourth proportional to 16,241.87, 22,413.86 and 8,789.87 is: 12,130.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,241.87 : 22,413.86 = 8,789.87 : x
  2. Step 2: Convert to fraction form
    16,241.87/22,413.86 = 8,789.87/x
  3. Step 3: Cross multiply
    16,241.87x = 22,413.86 × 8,789.87
  4. Step 4: Simplify right side
    16,241.87x = 197,014,759.58
  5. Step 5: Solve for x
    x = 197,014,759.58/16,241.87
  6. Step 6: Final answer
    x = 12,130.06

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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.