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Finding the Fourth Proportional to 3,128.82, 4,690.94 and 1,895.94

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Solution

The fourth proportional to 3,128.82, 4,690.94 and 1,895.94 is: 2,842.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.82 : 4,690.94 = 1,895.94 : x
  2. Step 2: Convert to fraction form
    3,128.82/4,690.94 = 1,895.94/x
  3. Step 3: Cross multiply
    3,128.82x = 4,690.94 × 1,895.94
  4. Step 4: Simplify right side
    3,128.82x = 8,893,731.30
  5. Step 5: Solve for x
    x = 8,893,731.30/3,128.82
  6. Step 6: Final answer
    x = 2,842.52

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