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Finding the Third Proportional to 11,672 and 15,324

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Solution

The third proportional to 11,672 and 15,324 is: 20,118.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,672 : 15,324 = 15,324 : x
  2. Step 2: Convert to fraction form
    11,672/15,324 = 15,324/x
  3. Step 3: Cross multiply
    11,672x = 15,324 × 15,324
  4. Step 4: Simplify right side
    11,672x = 234,824,976
  5. Step 5: Solve for x
    x = 234,824,976/11,672
  6. Step 6: Final answer
    x = 20,118.66

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.