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Finding the Third Proportional to 26,420 and 40,608

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Solution

The third proportional to 26,420 and 40,608 is: 62,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,420 : 40,608 = 40,608 : x
  2. Step 2: Convert to fraction form
    26,420/40,608 = 40,608/x
  3. Step 3: Cross multiply
    26,420x = 40,608 × 40,608
  4. Step 4: Simplify right side
    26,420x = 1,649,009,664
  5. Step 5: Solve for x
    x = 1,649,009,664/26,420
  6. Step 6: Final answer
    x = 62,415.20

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.