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Finding the Fourth Proportional to 3,395.97, 5,092.34 and 1,316.97

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Solution

The fourth proportional to 3,395.97, 5,092.34 and 1,316.97 is: 1,974.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.97 : 5,092.34 = 1,316.97 : x
  2. Step 2: Convert to fraction form
    3,395.97/5,092.34 = 1,316.97/x
  3. Step 3: Cross multiply
    3,395.97x = 5,092.34 × 1,316.97
  4. Step 4: Simplify right side
    3,395.97x = 6,706,452.42
  5. Step 5: Solve for x
    x = 6,706,452.42/3,395.97
  6. Step 6: Final answer
    x = 1,974.83

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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.