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Finding the Fourth Proportional to 17,855.74, 26,783.88 and 6,757.12

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Solution

The fourth proportional to 17,855.74, 26,783.88 and 6,757.12 is: 10,135.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,855.74 : 26,783.88 = 6,757.12 : x
  2. Step 2: Convert to fraction form
    17,855.74/26,783.88 = 6,757.12/x
  3. Step 3: Cross multiply
    17,855.74x = 26,783.88 × 6,757.12
  4. Step 4: Simplify right side
    17,855.74x = 180,981,891.23
  5. Step 5: Solve for x
    x = 180,981,891.23/17,855.74
  6. Step 6: Final answer
    x = 10,135.78

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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.