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Finding the Fourth Proportional to 3,494.83, 5,266.13 and 2,891.77

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Solution

The fourth proportional to 3,494.83, 5,266.13 and 2,891.77 is: 4,357.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,494.83 : 5,266.13 = 2,891.77 : x
  2. Step 2: Convert to fraction form
    3,494.83/5,266.13 = 2,891.77/x
  3. Step 3: Cross multiply
    3,494.83x = 5,266.13 × 2,891.77
  4. Step 4: Simplify right side
    3,494.83x = 15,228,422.29
  5. Step 5: Solve for x
    x = 15,228,422.29/3,494.83
  6. Step 6: Final answer
    x = 4,357.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.