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Finding the Fourth Proportional to 7,913.72, 11,874.70 and 5,740.39

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Solution

The fourth proportional to 7,913.72, 11,874.70 and 5,740.39 is: 8,613.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.72 : 11,874.70 = 5,740.39 : x
  2. Step 2: Convert to fraction form
    7,913.72/11,874.70 = 5,740.39/x
  3. Step 3: Cross multiply
    7,913.72x = 11,874.70 × 5,740.39
  4. Step 4: Simplify right side
    7,913.72x = 68,165,364.36
  5. Step 5: Solve for x
    x = 68,165,364.36/7,913.72
  6. Step 6: Final answer
    x = 8,613.57

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