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Finding the Fourth Proportional to 3,458.72, 5,175.90 and 2,977.58

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Solution

The fourth proportional to 3,458.72, 5,175.90 and 2,977.58 is: 4,455.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.72 : 5,175.90 = 2,977.58 : x
  2. Step 2: Convert to fraction form
    3,458.72/5,175.90 = 2,977.58/x
  3. Step 3: Cross multiply
    3,458.72x = 5,175.90 × 2,977.58
  4. Step 4: Simplify right side
    3,458.72x = 15,411,630.44
  5. Step 5: Solve for x
    x = 15,411,630.44/3,458.72
  6. Step 6: Final answer
    x = 4,455.88

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