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Finding the Third Proportional to 11,358 and 14,517

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Solution

The third proportional to 11,358 and 14,517 is: 18,554.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,358 : 14,517 = 14,517 : x
  2. Step 2: Convert to fraction form
    11,358/14,517 = 14,517/x
  3. Step 3: Cross multiply
    11,358x = 14,517 × 14,517
  4. Step 4: Simplify right side
    11,358x = 210,743,289
  5. Step 5: Solve for x
    x = 210,743,289/11,358
  6. Step 6: Final answer
    x = 18,554.61

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.