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Finding the Fourth Proportional to 16,209.95, 22,369.73 and 8,757.95

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Solution

The fourth proportional to 16,209.95, 22,369.73 and 8,757.95 is: 12,085.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,209.95 : 22,369.73 = 8,757.95 : x
  2. Step 2: Convert to fraction form
    16,209.95/22,369.73 = 8,757.95/x
  3. Step 3: Cross multiply
    16,209.95x = 22,369.73 × 8,757.95
  4. Step 4: Simplify right side
    16,209.95x = 195,912,976.85
  5. Step 5: Solve for x
    x = 195,912,976.85/16,209.95
  6. Step 6: Final answer
    x = 12,085.97

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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.