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Finding the Third Proportional to 35,446.50 and 77,881

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Solution

The third proportional to 35,446.50 and 77,881 is: 171,115.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,446.50 : 77,881 = 77,881 : x
  2. Step 2: Convert to fraction form
    35,446.50/77,881 = 77,881/x
  3. Step 3: Cross multiply
    35,446.50x = 77,881 × 77,881
  4. Step 4: Simplify right side
    35,446.50x = 6,065,450,161
  5. Step 5: Solve for x
    x = 6,065,450,161/35,446.50
  6. Step 6: Final answer
    x = 171,115.63

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.