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Finding the Fourth Proportional to 17,940.20, 26,910.30 and 16,773.80

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Solution

The fourth proportional to 17,940.20, 26,910.30 and 16,773.80 is: 25,160.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,940.20 : 26,910.30 = 16,773.80 : x
  2. Step 2: Convert to fraction form
    17,940.20/26,910.30 = 16,773.80/x
  3. Step 3: Cross multiply
    17,940.20x = 26,910.30 × 16,773.80
  4. Step 4: Simplify right side
    17,940.20x = 451,387,990.14
  5. Step 5: Solve for x
    x = 451,387,990.14/17,940.20
  6. Step 6: Final answer
    x = 25,160.70

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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.