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Finding the Fourth Proportional to 16,241.77, 22,413.70 and 8,789.77

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Solution

The fourth proportional to 16,241.77, 22,413.70 and 8,789.77 is: 12,129.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,241.77 : 22,413.70 = 8,789.77 : x
  2. Step 2: Convert to fraction form
    16,241.77/22,413.70 = 8,789.77/x
  3. Step 3: Cross multiply
    16,241.77x = 22,413.70 × 8,789.77
  4. Step 4: Simplify right side
    16,241.77x = 197,011,306.85
  5. Step 5: Solve for x
    x = 197,011,306.85/16,241.77
  6. Step 6: Final answer
    x = 12,129.92

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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.