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Finding the Fourth Proportional to 48,481.44, 72,722.16 and 13,421.08

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Solution

The fourth proportional to 48,481.44, 72,722.16 and 13,421.08 is: 20,131.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,481.44 : 72,722.16 = 13,421.08 : x
  2. Step 2: Convert to fraction form
    48,481.44/72,722.16 = 13,421.08/x
  3. Step 3: Cross multiply
    48,481.44x = 72,722.16 × 13,421.08
  4. Step 4: Simplify right side
    48,481.44x = 976,009,927.13
  5. Step 5: Solve for x
    x = 976,009,927.13/48,481.44
  6. Step 6: Final answer
    x = 20,131.62

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