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Finding the Fourth Proportional to 5,155.71, 7,114.83 and 2,797.83

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Solution

The fourth proportional to 5,155.71, 7,114.83 and 2,797.83 is: 3,860.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.71 : 7,114.83 = 2,797.83 : x
  2. Step 2: Convert to fraction form
    5,155.71/7,114.83 = 2,797.83/x
  3. Step 3: Cross multiply
    5,155.71x = 7,114.83 × 2,797.83
  4. Step 4: Simplify right side
    5,155.71x = 19,906,084.82
  5. Step 5: Solve for x
    x = 19,906,084.82/5,155.71
  6. Step 6: Final answer
    x = 3,860.98

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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.