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Finding the Third Proportional to 11,218.50 and 24,381

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Solution

The third proportional to 11,218.50 and 24,381 is: 52,986.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.50 : 24,381 = 24,381 : x
  2. Step 2: Convert to fraction form
    11,218.50/24,381 = 24,381/x
  3. Step 3: Cross multiply
    11,218.50x = 24,381 × 24,381
  4. Step 4: Simplify right side
    11,218.50x = 594,433,161
  5. Step 5: Solve for x
    x = 594,433,161/11,218.50
  6. Step 6: Final answer
    x = 52,986.87

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.