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Finding the Fourth Proportional to 18,796.73, 25,938.35 and 10,731.31

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Solution

The fourth proportional to 18,796.73, 25,938.35 and 10,731.31 is: 14,808.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.73 : 25,938.35 = 10,731.31 : x
  2. Step 2: Convert to fraction form
    18,796.73/25,938.35 = 10,731.31/x
  3. Step 3: Cross multiply
    18,796.73x = 25,938.35 × 10,731.31
  4. Step 4: Simplify right side
    18,796.73x = 278,352,474.74
  5. Step 5: Solve for x
    x = 278,352,474.74/18,796.73
  6. Step 6: Final answer
    x = 14,808.56

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Why These Related Problems?

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