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Finding the Fourth Proportional to 20,922.03, 31,386.42 and 6,877.98

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Solution

The fourth proportional to 20,922.03, 31,386.42 and 6,877.98 is: 10,318.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,922.03 : 31,386.42 = 6,877.98 : x
  2. Step 2: Convert to fraction form
    20,922.03/31,386.42 = 6,877.98/x
  3. Step 3: Cross multiply
    20,922.03x = 31,386.42 × 6,877.98
  4. Step 4: Simplify right side
    20,922.03x = 215,875,169.03
  5. Step 5: Solve for x
    x = 215,875,169.03/20,922.03
  6. Step 6: Final answer
    x = 10,318.08

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