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Finding the Fourth Proportional to 49,398.64, 74,084.75 and 13,857.84

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Solution

The fourth proportional to 49,398.64, 74,084.75 and 13,857.84 is: 20,783.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,398.64 : 74,084.75 = 13,857.84 : x
  2. Step 2: Convert to fraction form
    49,398.64/74,084.75 = 13,857.84/x
  3. Step 3: Cross multiply
    49,398.64x = 74,084.75 × 13,857.84
  4. Step 4: Simplify right side
    49,398.64x = 1,026,654,542.65
  5. Step 5: Solve for x
    x = 1,026,654,542.65/49,398.64
  6. Step 6: Final answer
    x = 20,783.05

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