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Finding the Fourth Proportional to 18,149.80, 27,224.70 and 16,400.20

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Solution

The fourth proportional to 18,149.80, 27,224.70 and 16,400.20 is: 24,600.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149.80 : 27,224.70 = 16,400.20 : x
  2. Step 2: Convert to fraction form
    18,149.80/27,224.70 = 16,400.20/x
  3. Step 3: Cross multiply
    18,149.80x = 27,224.70 × 16,400.20
  4. Step 4: Simplify right side
    18,149.80x = 446,490,524.94
  5. Step 5: Solve for x
    x = 446,490,524.94/18,149.80
  6. Step 6: Final answer
    x = 24,600.30

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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.