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Finding the Third Proportional to 9,447 and 13,881

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Solution

The third proportional to 9,447 and 13,881 is: 20,396.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,447 : 13,881 = 13,881 : x
  2. Step 2: Convert to fraction form
    9,447/13,881 = 13,881/x
  3. Step 3: Cross multiply
    9,447x = 13,881 × 13,881
  4. Step 4: Simplify right side
    9,447x = 192,682,161
  5. Step 5: Solve for x
    x = 192,682,161/9,447
  6. Step 6: Final answer
    x = 20,396.12

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.