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Finding the Fourth Proportional to 7,120.91, 10,681.44 and 4,671.27

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Solution

The fourth proportional to 7,120.91, 10,681.44 and 4,671.27 is: 7,006.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.91 : 10,681.44 = 4,671.27 : x
  2. Step 2: Convert to fraction form
    7,120.91/10,681.44 = 4,671.27/x
  3. Step 3: Cross multiply
    7,120.91x = 10,681.44 × 4,671.27
  4. Step 4: Simplify right side
    7,120.91x = 49,895,872.71
  5. Step 5: Solve for x
    x = 49,895,872.71/7,120.91
  6. Step 6: Final answer
    x = 7,006.95

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