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Finding the Fourth Proportional to 19,996.24, 27,606.60 and 13,717.84

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Solution

The fourth proportional to 19,996.24, 27,606.60 and 13,717.84 is: 18,938.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,996.24 : 27,606.60 = 13,717.84 : x
  2. Step 2: Convert to fraction form
    19,996.24/27,606.60 = 13,717.84/x
  3. Step 3: Cross multiply
    19,996.24x = 27,606.60 × 13,717.84
  4. Step 4: Simplify right side
    19,996.24x = 378,702,921.74
  5. Step 5: Solve for x
    x = 378,702,921.74/19,996.24
  6. Step 6: Final answer
    x = 18,938.71

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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.