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Finding the Fourth Proportional to 29,448.78, 40,640.40 and 16,875.96

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Solution

The fourth proportional to 29,448.78, 40,640.40 and 16,875.96 is: 23,289.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,448.78 : 40,640.40 = 16,875.96 : x
  2. Step 2: Convert to fraction form
    29,448.78/40,640.40 = 16,875.96/x
  3. Step 3: Cross multiply
    29,448.78x = 40,640.40 × 16,875.96
  4. Step 4: Simplify right side
    29,448.78x = 685,845,764.78
  5. Step 5: Solve for x
    x = 685,845,764.78/29,448.78
  6. Step 6: Final answer
    x = 23,289.45

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