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Finding the Fourth Proportional to 3,577.55, 4,934.36 and 3,420.51

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Solution

The fourth proportional to 3,577.55, 4,934.36 and 3,420.51 is: 4,717.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,577.55 : 4,934.36 = 3,420.51 : x
  2. Step 2: Convert to fraction form
    3,577.55/4,934.36 = 3,420.51/x
  3. Step 3: Cross multiply
    3,577.55x = 4,934.36 × 3,420.51
  4. Step 4: Simplify right side
    3,577.55x = 16,878,010.62
  5. Step 5: Solve for x
    x = 16,878,010.62/3,577.55
  6. Step 6: Final answer
    x = 4,717.76

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