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Finding the Third Proportional to 50,872.50 and 77,821.50

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Solution

The third proportional to 50,872.50 and 77,821.50 is: 119,046.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,872.50 : 77,821.50 = 77,821.50 : x
  2. Step 2: Convert to fraction form
    50,872.50/77,821.50 = 77,821.50/x
  3. Step 3: Cross multiply
    50,872.50x = 77,821.50 × 77,821.50
  4. Step 4: Simplify right side
    50,872.50x = 6,056,185,862.25
  5. Step 5: Solve for x
    x = 6,056,185,862.25/50,872.50
  6. Step 6: Final answer
    x = 119,046.36

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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.