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Finding the Fourth Proportional to 3,993.91, 5,510.48 and 2,314.98

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Solution

The fourth proportional to 3,993.91, 5,510.48 and 2,314.98 is: 3,194.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.91 : 5,510.48 = 2,314.98 : x
  2. Step 2: Convert to fraction form
    3,993.91/5,510.48 = 2,314.98/x
  3. Step 3: Cross multiply
    3,993.91x = 5,510.48 × 2,314.98
  4. Step 4: Simplify right side
    3,993.91x = 12,756,652.44
  5. Step 5: Solve for x
    x = 12,756,652.44/3,993.91
  6. Step 6: Final answer
    x = 3,194.03

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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.