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Finding the Fourth Proportional to 17,871.82, 24,662.19 and 9,913.87

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Solution

The fourth proportional to 17,871.82, 24,662.19 and 9,913.87 is: 13,680.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,871.82 : 24,662.19 = 9,913.87 : x
  2. Step 2: Convert to fraction form
    17,871.82/24,662.19 = 9,913.87/x
  3. Step 3: Cross multiply
    17,871.82x = 24,662.19 × 9,913.87
  4. Step 4: Simplify right side
    17,871.82x = 244,497,745.58
  5. Step 5: Solve for x
    x = 244,497,745.58/17,871.82
  6. Step 6: Final answer
    x = 13,680.63

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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.