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Finding the Fourth Proportional to 22,255.01, 30,711.90 and 12,183.46

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Solution

The fourth proportional to 22,255.01, 30,711.90 and 12,183.46 is: 16,813.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,255.01 : 30,711.90 = 12,183.46 : x
  2. Step 2: Convert to fraction form
    22,255.01/30,711.90 = 12,183.46/x
  3. Step 3: Cross multiply
    22,255.01x = 30,711.90 × 12,183.46
  4. Step 4: Simplify right side
    22,255.01x = 374,177,205.17
  5. Step 5: Solve for x
    x = 374,177,205.17/22,255.01
  6. Step 6: Final answer
    x = 16,813.17

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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.