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Finding the Third Proportional to 13,911.75 and 18,954

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Solution

The third proportional to 13,911.75 and 18,954 is: 25,823.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.75 : 18,954 = 18,954 : x
  2. Step 2: Convert to fraction form
    13,911.75/18,954 = 18,954/x
  3. Step 3: Cross multiply
    13,911.75x = 18,954 × 18,954
  4. Step 4: Simplify right side
    13,911.75x = 359,254,116
  5. Step 5: Solve for x
    x = 359,254,116/13,911.75
  6. Step 6: Final answer
    x = 25,823.79

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.