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Finding the Third Proportional to 51,377 and 76,719

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Solution

The third proportional to 51,377 and 76,719 is: 114,561.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,377 : 76,719 = 76,719 : x
  2. Step 2: Convert to fraction form
    51,377/76,719 = 76,719/x
  3. Step 3: Cross multiply
    51,377x = 76,719 × 76,719
  4. Step 4: Simplify right side
    51,377x = 5,885,804,961
  5. Step 5: Solve for x
    x = 5,885,804,961/51,377
  6. Step 6: Final answer
    x = 114,561.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.