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Finding the Fourth Proportional to 34,790.72, 48,036.16 and 21,379.96

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Solution

The fourth proportional to 34,790.72, 48,036.16 and 21,379.96 is: 29,519.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,790.72 : 48,036.16 = 21,379.96 : x
  2. Step 2: Convert to fraction form
    34,790.72/48,036.16 = 21,379.96/x
  3. Step 3: Cross multiply
    34,790.72x = 48,036.16 × 21,379.96
  4. Step 4: Simplify right side
    34,790.72x = 1,027,011,085.99
  5. Step 5: Solve for x
    x = 1,027,011,085.99/34,790.72
  6. Step 6: Final answer
    x = 29,519.68

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