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Finding the Fourth Proportional to 2,743.67, 4,115.12 and 894.80

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Solution

The fourth proportional to 2,743.67, 4,115.12 and 894.80 is: 1,342.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.67 : 4,115.12 = 894.80 : x
  2. Step 2: Convert to fraction form
    2,743.67/4,115.12 = 894.80/x
  3. Step 3: Cross multiply
    2,743.67x = 4,115.12 × 894.80
  4. Step 4: Simplify right side
    2,743.67x = 3,682,184.33
  5. Step 5: Solve for x
    x = 3,682,184.33/2,743.67
  6. Step 6: Final answer
    x = 1,342.07

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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.