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Finding the Fourth Proportional to 64,486.15, 88,991.25 and 35,806.21

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Solution

The fourth proportional to 64,486.15, 88,991.25 and 35,806.21 is: 49,412.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,486.15 : 88,991.25 = 35,806.21 : x
  2. Step 2: Convert to fraction form
    64,486.15/88,991.25 = 35,806.21/x
  3. Step 3: Cross multiply
    64,486.15x = 88,991.25 × 35,806.21
  4. Step 4: Simplify right side
    64,486.15x = 3,186,439,385.66
  5. Step 5: Solve for x
    x = 3,186,439,385.66/64,486.15
  6. Step 6: Final answer
    x = 49,412.77

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