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Finding the Fourth Proportional to 10,874.75, 16,312.13 and 4,718.75

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Solution

The fourth proportional to 10,874.75, 16,312.13 and 4,718.75 is: 7,078.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,874.75 : 16,312.13 = 4,718.75 : x
  2. Step 2: Convert to fraction form
    10,874.75/16,312.13 = 4,718.75/x
  3. Step 3: Cross multiply
    10,874.75x = 16,312.13 × 4,718.75
  4. Step 4: Simplify right side
    10,874.75x = 76,972,839.84
  5. Step 5: Solve for x
    x = 76,972,839.84/10,874.75
  6. Step 6: Final answer
    x = 7,078.13

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