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Finding the Fourth Proportional to 3,266.87, 4,508.87 and 2,087.91

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Solution

The fourth proportional to 3,266.87, 4,508.87 and 2,087.91 is: 2,881.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,266.87 : 4,508.87 = 2,087.91 : x
  2. Step 2: Convert to fraction form
    3,266.87/4,508.87 = 2,087.91/x
  3. Step 3: Cross multiply
    3,266.87x = 4,508.87 × 2,087.91
  4. Step 4: Simplify right side
    3,266.87x = 9,414,104.32
  5. Step 5: Solve for x
    x = 9,414,104.32/3,266.87
  6. Step 6: Final answer
    x = 2,881.69

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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.