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Finding the Fourth Proportional to 25,806.40, 35,619.84 and 15,199.52

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Solution

The fourth proportional to 25,806.40, 35,619.84 and 15,199.52 is: 20,979.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,806.40 : 35,619.84 = 15,199.52 : x
  2. Step 2: Convert to fraction form
    25,806.40/35,619.84 = 15,199.52/x
  3. Step 3: Cross multiply
    25,806.40x = 35,619.84 × 15,199.52
  4. Step 4: Simplify right side
    25,806.40x = 541,404,470.48
  5. Step 5: Solve for x
    x = 541,404,470.48/25,806.40
  6. Step 6: Final answer
    x = 20,979.47

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