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Finding the Fourth Proportional to 2,991.46, 4,489.50 and 2,073.44

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Solution

The fourth proportional to 2,991.46, 4,489.50 and 2,073.44 is: 3,111.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.46 : 4,489.50 = 2,073.44 : x
  2. Step 2: Convert to fraction form
    2,991.46/4,489.50 = 2,073.44/x
  3. Step 3: Cross multiply
    2,991.46x = 4,489.50 × 2,073.44
  4. Step 4: Simplify right side
    2,991.46x = 9,308,708.88
  5. Step 5: Solve for x
    x = 9,308,708.88/2,991.46
  6. Step 6: Final answer
    x = 3,111.76

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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.