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Finding the Fourth Proportional to 5,891.16, 8,841.78 and 3,422.55

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Solution

The fourth proportional to 5,891.16, 8,841.78 and 3,422.55 is: 5,136.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,891.16 : 8,841.78 = 3,422.55 : x
  2. Step 2: Convert to fraction form
    5,891.16/8,841.78 = 3,422.55/x
  3. Step 3: Cross multiply
    5,891.16x = 8,841.78 × 3,422.55
  4. Step 4: Simplify right side
    5,891.16x = 30,261,434.14
  5. Step 5: Solve for x
    x = 30,261,434.14/5,891.16
  6. Step 6: Final answer
    x = 5,136.75

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1.5x scale

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.