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Finding the Fourth Proportional to 4,943.68, 7,416.68 and 1,656.80

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Solution

The fourth proportional to 4,943.68, 7,416.68 and 1,656.80 is: 2,485.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,943.68 : 7,416.68 = 1,656.80 : x
  2. Step 2: Convert to fraction form
    4,943.68/7,416.68 = 1,656.80/x
  3. Step 3: Cross multiply
    4,943.68x = 7,416.68 × 1,656.80
  4. Step 4: Simplify right side
    4,943.68x = 12,287,955.42
  5. Step 5: Solve for x
    x = 12,287,955.42/4,943.68
  6. Step 6: Final answer
    x = 2,485.59

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