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Finding the Fourth Proportional to 2,808.87, 3,876.83 and 1,925.83

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Solution

The fourth proportional to 2,808.87, 3,876.83 and 1,925.83 is: 2,658.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.87 : 3,876.83 = 1,925.83 : x
  2. Step 2: Convert to fraction form
    2,808.87/3,876.83 = 1,925.83/x
  3. Step 3: Cross multiply
    2,808.87x = 3,876.83 × 1,925.83
  4. Step 4: Simplify right side
    2,808.87x = 7,466,115.52
  5. Step 5: Solve for x
    x = 7,466,115.52/2,808.87
  6. Step 6: Final answer
    x = 2,658.05

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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.