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Finding the Fourth Proportional to 30,685.91, 46,028.70 and 8,499.11

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Solution

The fourth proportional to 30,685.91, 46,028.70 and 8,499.11 is: 12,748.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,685.91 : 46,028.70 = 8,499.11 : x
  2. Step 2: Convert to fraction form
    30,685.91/46,028.70 = 8,499.11/x
  3. Step 3: Cross multiply
    30,685.91x = 46,028.70 × 8,499.11
  4. Step 4: Simplify right side
    30,685.91x = 391,202,754.31
  5. Step 5: Solve for x
    x = 391,202,754.31/30,685.91
  6. Step 6: Final answer
    x = 12,748.61

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