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Finding the Third Proportional to 50,805 and 77,672

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Solution

The third proportional to 50,805 and 77,672 is: 118,746.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,805 : 77,672 = 77,672 : x
  2. Step 2: Convert to fraction form
    50,805/77,672 = 77,672/x
  3. Step 3: Cross multiply
    50,805x = 77,672 × 77,672
  4. Step 4: Simplify right side
    50,805x = 6,032,939,584
  5. Step 5: Solve for x
    x = 6,032,939,584/50,805
  6. Step 6: Final answer
    x = 118,746.97

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.