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Finding the Fourth Proportional to 3,431.98, 5,147.97 and 967.06

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Solution

The fourth proportional to 3,431.98, 5,147.97 and 967.06 is: 1,450.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.98 : 5,147.97 = 967.06 : x
  2. Step 2: Convert to fraction form
    3,431.98/5,147.97 = 967.06/x
  3. Step 3: Cross multiply
    3,431.98x = 5,147.97 × 967.06
  4. Step 4: Simplify right side
    3,431.98x = 4,978,395.87
  5. Step 5: Solve for x
    x = 4,978,395.87/3,431.98
  6. Step 6: Final answer
    x = 1,450.59

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Similar ratio
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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.