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Finding the Third Proportional to 35,480 and 77,608

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Solution

The third proportional to 35,480 and 77,608 is: 169,757.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,480 : 77,608 = 77,608 : x
  2. Step 2: Convert to fraction form
    35,480/77,608 = 77,608/x
  3. Step 3: Cross multiply
    35,480x = 77,608 × 77,608
  4. Step 4: Simplify right side
    35,480x = 6,023,001,664
  5. Step 5: Solve for x
    x = 6,023,001,664/35,480
  6. Step 6: Final answer
    x = 169,757.66

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.