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Finding the Third Proportional to 13,890 and 29,832

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Solution

The third proportional to 13,890 and 29,832 is: 64,071.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890 : 29,832 = 29,832 : x
  2. Step 2: Convert to fraction form
    13,890/29,832 = 29,832/x
  3. Step 3: Cross multiply
    13,890x = 29,832 × 29,832
  4. Step 4: Simplify right side
    13,890x = 889,948,224
  5. Step 5: Solve for x
    x = 889,948,224/13,890
  6. Step 6: Final answer
    x = 64,071.15

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.