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Finding the Fourth Proportional to 4,874.78, 6,727.10 and 2,858.69

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Solution

The fourth proportional to 4,874.78, 6,727.10 and 2,858.69 is: 3,944.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,874.78 : 6,727.10 = 2,858.69 : x
  2. Step 2: Convert to fraction form
    4,874.78/6,727.10 = 2,858.69/x
  3. Step 3: Cross multiply
    4,874.78x = 6,727.10 × 2,858.69
  4. Step 4: Simplify right side
    4,874.78x = 19,230,645.57
  5. Step 5: Solve for x
    x = 19,230,645.57/4,874.78
  6. Step 6: Final answer
    x = 3,944.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.