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Finding the Fourth Proportional to 2,062.75, 3,092.91 and 891.94

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Solution

The fourth proportional to 2,062.75, 3,092.91 and 891.94 is: 1,337.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,062.75 : 3,092.91 = 891.94 : x
  2. Step 2: Convert to fraction form
    2,062.75/3,092.91 = 891.94/x
  3. Step 3: Cross multiply
    2,062.75x = 3,092.91 × 891.94
  4. Step 4: Simplify right side
    2,062.75x = 2,758,690.15
  5. Step 5: Solve for x
    x = 2,758,690.15/2,062.75
  6. Step 6: Final answer
    x = 1,337.38

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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.