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Finding the Fourth Proportional to 38,797.80, 58,256.10 and 21,301.80

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Solution

The fourth proportional to 38,797.80, 58,256.10 and 21,301.80 is: 31,985.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,797.80 : 58,256.10 = 21,301.80 : x
  2. Step 2: Convert to fraction form
    38,797.80/58,256.10 = 21,301.80/x
  3. Step 3: Cross multiply
    38,797.80x = 58,256.10 × 21,301.80
  4. Step 4: Simplify right side
    38,797.80x = 1,240,959,790.98
  5. Step 5: Solve for x
    x = 1,240,959,790.98/38,797.80
  6. Step 6: Final answer
    x = 31,985.31

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