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Finding the Fourth Proportional to 18,206.80, 27,310.20 and 16,019.80

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Solution

The fourth proportional to 18,206.80, 27,310.20 and 16,019.80 is: 24,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,206.80 : 27,310.20 = 16,019.80 : x
  2. Step 2: Convert to fraction form
    18,206.80/27,310.20 = 16,019.80/x
  3. Step 3: Cross multiply
    18,206.80x = 27,310.20 × 16,019.80
  4. Step 4: Simplify right side
    18,206.80x = 437,503,941.96
  5. Step 5: Solve for x
    x = 437,503,941.96/18,206.80
  6. Step 6: Final answer
    x = 24,029.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.