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Finding the Fourth Proportional to 2,842.44, 3,922.20 and 1,663.44

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Solution

The fourth proportional to 2,842.44, 3,922.20 and 1,663.44 is: 2,295.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,842.44 : 3,922.20 = 1,663.44 : x
  2. Step 2: Convert to fraction form
    2,842.44/3,922.20 = 1,663.44/x
  3. Step 3: Cross multiply
    2,842.44x = 3,922.20 × 1,663.44
  4. Step 4: Simplify right side
    2,842.44x = 6,524,344.37
  5. Step 5: Solve for x
    x = 6,524,344.37/2,842.44
  6. Step 6: Final answer
    x = 2,295.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.