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Finding the Third Proportional to 26,220 and 53,720

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Solution

The third proportional to 26,220 and 53,720 is: 110,062.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,220 : 53,720 = 53,720 : x
  2. Step 2: Convert to fraction form
    26,220/53,720 = 53,720/x
  3. Step 3: Cross multiply
    26,220x = 53,720 × 53,720
  4. Step 4: Simplify right side
    26,220x = 2,885,838,400
  5. Step 5: Solve for x
    x = 2,885,838,400/26,220
  6. Step 6: Final answer
    x = 110,062.49

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.