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Finding the Fourth Proportional to 16,209.99, 22,369.77 and 8,757.99

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Solution

The fourth proportional to 16,209.99, 22,369.77 and 8,757.99 is: 12,086.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,209.99 : 22,369.77 = 8,757.99 : x
  2. Step 2: Convert to fraction form
    16,209.99/22,369.77 = 8,757.99/x
  3. Step 3: Cross multiply
    16,209.99x = 22,369.77 × 8,757.99
  4. Step 4: Simplify right side
    16,209.99x = 195,914,221.96
  5. Step 5: Solve for x
    x = 195,914,221.96/16,209.99
  6. Step 6: Final answer
    x = 12,086.02

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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.