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Finding the Fourth Proportional to 3,083.92, 4,625.87 and 892.64

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Solution

The fourth proportional to 3,083.92, 4,625.87 and 892.64 is: 1,338.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,083.92 : 4,625.87 = 892.64 : x
  2. Step 2: Convert to fraction form
    3,083.92/4,625.87 = 892.64/x
  3. Step 3: Cross multiply
    3,083.92x = 4,625.87 × 892.64
  4. Step 4: Simplify right side
    3,083.92x = 4,129,256.18
  5. Step 5: Solve for x
    x = 4,129,256.18/3,083.92
  6. Step 6: Final answer
    x = 1,338.96

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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.