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Finding the Fourth Proportional to 4,993.26, 6,890.31 and 2,755.05

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Solution

The fourth proportional to 4,993.26, 6,890.31 and 2,755.05 is: 3,801.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.26 : 6,890.31 = 2,755.05 : x
  2. Step 2: Convert to fraction form
    4,993.26/6,890.31 = 2,755.05/x
  3. Step 3: Cross multiply
    4,993.26x = 6,890.31 × 2,755.05
  4. Step 4: Simplify right side
    4,993.26x = 18,983,148.57
  5. Step 5: Solve for x
    x = 18,983,148.57/4,993.26
  6. Step 6: Final answer
    x = 3,801.75

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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.