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Finding the Third Proportional to 11,146.50 and 15,282

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Solution

The third proportional to 11,146.50 and 15,282 is: 20,951.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.50 : 15,282 = 15,282 : x
  2. Step 2: Convert to fraction form
    11,146.50/15,282 = 15,282/x
  3. Step 3: Cross multiply
    11,146.50x = 15,282 × 15,282
  4. Step 4: Simplify right side
    11,146.50x = 233,539,524
  5. Step 5: Solve for x
    x = 233,539,524/11,146.50
  6. Step 6: Final answer
    x = 20,951.83

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.