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Finding the Fourth Proportional to 2,832.92, 4,249.60 and 885.12

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Solution

The fourth proportional to 2,832.92, 4,249.60 and 885.12 is: 1,327.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,832.92 : 4,249.60 = 885.12 : x
  2. Step 2: Convert to fraction form
    2,832.92/4,249.60 = 885.12/x
  3. Step 3: Cross multiply
    2,832.92x = 4,249.60 × 885.12
  4. Step 4: Simplify right side
    2,832.92x = 3,761,405.95
  5. Step 5: Solve for x
    x = 3,761,405.95/2,832.92
  6. Step 6: Final answer
    x = 1,327.75

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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.