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Finding the Third Proportional to 50,790.75 and 78,753.75

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Solution

The third proportional to 50,790.75 and 78,753.75 is: 122,111.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,790.75 : 78,753.75 = 78,753.75 : x
  2. Step 2: Convert to fraction form
    50,790.75/78,753.75 = 78,753.75/x
  3. Step 3: Cross multiply
    50,790.75x = 78,753.75 × 78,753.75
  4. Step 4: Simplify right side
    50,790.75x = 6,202,153,139.06
  5. Step 5: Solve for x
    x = 6,202,153,139.06/50,790.75
  6. Step 6: Final answer
    x = 122,111.86

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.