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Finding the Third Proportional to 13,896 and 33,630

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Solution

The third proportional to 13,896 and 33,630 is: 81,388.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,896 : 33,630 = 33,630 : x
  2. Step 2: Convert to fraction form
    13,896/33,630 = 33,630/x
  3. Step 3: Cross multiply
    13,896x = 33,630 × 33,630
  4. Step 4: Simplify right side
    13,896x = 1,130,976,900
  5. Step 5: Solve for x
    x = 1,130,976,900/13,896
  6. Step 6: Final answer
    x = 81,388.67

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.