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Finding the Fourth Proportional to 2,118.58, 3,175.98 and 1,653.82

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Solution

The fourth proportional to 2,118.58, 3,175.98 and 1,653.82 is: 2,479.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.58 : 3,175.98 = 1,653.82 : x
  2. Step 2: Convert to fraction form
    2,118.58/3,175.98 = 1,653.82/x
  3. Step 3: Cross multiply
    2,118.58x = 3,175.98 × 1,653.82
  4. Step 4: Simplify right side
    2,118.58x = 5,252,499.24
  5. Step 5: Solve for x
    x = 5,252,499.24/2,118.58
  6. Step 6: Final answer
    x = 2,479.25

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