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Finding the Fourth Proportional to 18,791.73, 25,932.56 and 10,408.23

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Solution

The fourth proportional to 18,791.73, 25,932.56 and 10,408.23 is: 14,363.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,791.73 : 25,932.56 = 10,408.23 : x
  2. Step 2: Convert to fraction form
    18,791.73/25,932.56 = 10,408.23/x
  3. Step 3: Cross multiply
    18,791.73x = 25,932.56 × 10,408.23
  4. Step 4: Simplify right side
    18,791.73x = 269,911,996.93
  5. Step 5: Solve for x
    x = 269,911,996.93/18,791.73
  6. Step 6: Final answer
    x = 14,363.34

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1.5x scale

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.