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Finding the Third Proportional to 15,440 and 33,668

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Solution

The third proportional to 15,440 and 33,668 is: 73,415.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,440 : 33,668 = 33,668 : x
  2. Step 2: Convert to fraction form
    15,440/33,668 = 33,668/x
  3. Step 3: Cross multiply
    15,440x = 33,668 × 33,668
  4. Step 4: Simplify right side
    15,440x = 1,133,534,224
  5. Step 5: Solve for x
    x = 1,133,534,224/15,440
  6. Step 6: Final answer
    x = 73,415.43

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.