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Finding the Third Proportional to 17,748 and 27,720

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Solution

The third proportional to 17,748 and 27,720 is: 43,294.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,748 : 27,720 = 27,720 : x
  2. Step 2: Convert to fraction form
    17,748/27,720 = 27,720/x
  3. Step 3: Cross multiply
    17,748x = 27,720 × 27,720
  4. Step 4: Simplify right side
    17,748x = 768,398,400
  5. Step 5: Solve for x
    x = 768,398,400/17,748
  6. Step 6: Final answer
    x = 43,294.93

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.