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Finding the Fourth Proportional to 19,968.31, 27,556.12 and 11,016.19

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Solution

The fourth proportional to 19,968.31, 27,556.12 and 11,016.19 is: 15,202.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,968.31 : 27,556.12 = 11,016.19 : x
  2. Step 2: Convert to fraction form
    19,968.31/27,556.12 = 11,016.19/x
  3. Step 3: Cross multiply
    19,968.31x = 27,556.12 × 11,016.19
  4. Step 4: Simplify right side
    19,968.31x = 303,563,439.83
  5. Step 5: Solve for x
    x = 303,563,439.83/19,968.31
  6. Step 6: Final answer
    x = 15,202.26

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.