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Finding the Fourth Proportional to 7,958.03, 11,938.40 and 3,280.57

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Solution

The fourth proportional to 7,958.03, 11,938.40 and 3,280.57 is: 4,921.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,958.03 : 11,938.40 = 3,280.57 : x
  2. Step 2: Convert to fraction form
    7,958.03/11,938.40 = 3,280.57/x
  3. Step 3: Cross multiply
    7,958.03x = 11,938.40 × 3,280.57
  4. Step 4: Simplify right side
    7,958.03x = 39,164,756.89
  5. Step 5: Solve for x
    x = 39,164,756.89/7,958.03
  6. Step 6: Final answer
    x = 4,921.41

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