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Finding the Third Proportional to 13,672 and 29,900

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Solution

The third proportional to 13,672 and 29,900 is: 65,389.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,672 : 29,900 = 29,900 : x
  2. Step 2: Convert to fraction form
    13,672/29,900 = 29,900/x
  3. Step 3: Cross multiply
    13,672x = 29,900 × 29,900
  4. Step 4: Simplify right side
    13,672x = 894,010,000
  5. Step 5: Solve for x
    x = 894,010,000/13,672
  6. Step 6: Final answer
    x = 65,389.85

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.