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Finding the Third Proportional to 35,712.75 and 77,775

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Solution

The third proportional to 35,712.75 and 77,775 is: 169,377.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,712.75 : 77,775 = 77,775 : x
  2. Step 2: Convert to fraction form
    35,712.75/77,775 = 77,775/x
  3. Step 3: Cross multiply
    35,712.75x = 77,775 × 77,775
  4. Step 4: Simplify right side
    35,712.75x = 6,048,950,625
  5. Step 5: Solve for x
    x = 6,048,950,625/35,712.75
  6. Step 6: Final answer
    x = 169,377.90

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.