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Finding the Fourth Proportional to 3,395.91, 5,092.25 and 1,316.89

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Solution

The fourth proportional to 3,395.91, 5,092.25 and 1,316.89 is: 1,974.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.91 : 5,092.25 = 1,316.89 : x
  2. Step 2: Convert to fraction form
    3,395.91/5,092.25 = 1,316.89/x
  3. Step 3: Cross multiply
    3,395.91x = 5,092.25 × 1,316.89
  4. Step 4: Simplify right side
    3,395.91x = 6,705,933.10
  5. Step 5: Solve for x
    x = 6,705,933.10/3,395.91
  6. Step 6: Final answer
    x = 1,974.71

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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.