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Finding the Fourth Proportional to 25,784.79, 35,579.82 and 15,709.57

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Solution

The fourth proportional to 25,784.79, 35,579.82 and 15,709.57 is: 21,677.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,784.79 : 35,579.82 = 15,709.57 : x
  2. Step 2: Convert to fraction form
    25,784.79/35,579.82 = 15,709.57/x
  3. Step 3: Cross multiply
    25,784.79x = 35,579.82 × 15,709.57
  4. Step 4: Simplify right side
    25,784.79x = 558,943,672.88
  5. Step 5: Solve for x
    x = 558,943,672.88/25,784.79
  6. Step 6: Final answer
    x = 21,677.27

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