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Finding the Third Proportional to 11,416 and 18,292

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Solution

The third proportional to 11,416 and 18,292 is: 29,309.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,416 : 18,292 = 18,292 : x
  2. Step 2: Convert to fraction form
    11,416/18,292 = 18,292/x
  3. Step 3: Cross multiply
    11,416x = 18,292 × 18,292
  4. Step 4: Simplify right side
    11,416x = 334,597,264
  5. Step 5: Solve for x
    x = 334,597,264/11,416
  6. Step 6: Final answer
    x = 29,309.50

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.