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Finding the Fourth Proportional to 18,794.73, 25,877.56 and 15,956.49

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Solution

The fourth proportional to 18,794.73, 25,877.56 and 15,956.49 is: 21,969.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.73 : 25,877.56 = 15,956.49 : x
  2. Step 2: Convert to fraction form
    18,794.73/25,877.56 = 15,956.49/x
  3. Step 3: Cross multiply
    18,794.73x = 25,877.56 × 15,956.49
  4. Step 4: Simplify right side
    18,794.73x = 412,915,114.43
  5. Step 5: Solve for x
    x = 412,915,114.43/18,794.73
  6. Step 6: Final answer
    x = 21,969.72

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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.