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Finding the Fourth Proportional to 25,786.35, 38,678.99 and 13,945.77

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Solution

The fourth proportional to 25,786.35, 38,678.99 and 13,945.77 is: 20,918.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,786.35 : 38,678.99 = 13,945.77 : x
  2. Step 2: Convert to fraction form
    25,786.35/38,678.99 = 13,945.77/x
  3. Step 3: Cross multiply
    25,786.35x = 38,678.99 × 13,945.77
  4. Step 4: Simplify right side
    25,786.35x = 539,408,228.64
  5. Step 5: Solve for x
    x = 539,408,228.64/25,786.35
  6. Step 6: Final answer
    x = 20,918.36

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