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Finding the Third Proportional to 7,706.25 and 16,218

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Solution

The third proportional to 7,706.25 and 16,218 is: 34,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,706.25 : 16,218 = 16,218 : x
  2. Step 2: Convert to fraction form
    7,706.25/16,218 = 16,218/x
  3. Step 3: Cross multiply
    7,706.25x = 16,218 × 16,218
  4. Step 4: Simplify right side
    7,706.25x = 263,023,524
  5. Step 5: Solve for x
    x = 263,023,524/7,706.25
  6. Step 6: Final answer
    x = 34,131.20

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.