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Finding the Fourth Proportional to 47,779.98, 65,945.51 and 31,647.48

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Solution

The fourth proportional to 47,779.98, 65,945.51 and 31,647.48 is: 43,679.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,779.98 : 65,945.51 = 31,647.48 : x
  2. Step 2: Convert to fraction form
    47,779.98/65,945.51 = 31,647.48/x
  3. Step 3: Cross multiply
    47,779.98x = 65,945.51 × 31,647.48
  4. Step 4: Simplify right side
    47,779.98x = 2,087,009,208.81
  5. Step 5: Solve for x
    x = 2,087,009,208.81/47,779.98
  6. Step 6: Final answer
    x = 43,679.57

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