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Finding the Fourth Proportional to 28,560.24, 42,811.20 and 14,494.32

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Solution

The fourth proportional to 28,560.24, 42,811.20 and 14,494.32 is: 21,726.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,560.24 : 42,811.20 = 14,494.32 : x
  2. Step 2: Convert to fraction form
    28,560.24/42,811.20 = 14,494.32/x
  3. Step 3: Cross multiply
    28,560.24x = 42,811.20 × 14,494.32
  4. Step 4: Simplify right side
    28,560.24x = 620,519,232.38
  5. Step 5: Solve for x
    x = 620,519,232.38/28,560.24
  6. Step 6: Final answer
    x = 21,726.68

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