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Finding the Third Proportional to 50,847.75 and 78,732

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Solution

The third proportional to 50,847.75 and 78,732 is: 121,907.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,847.75 : 78,732 = 78,732 : x
  2. Step 2: Convert to fraction form
    50,847.75/78,732 = 78,732/x
  3. Step 3: Cross multiply
    50,847.75x = 78,732 × 78,732
  4. Step 4: Simplify right side
    50,847.75x = 6,198,727,824
  5. Step 5: Solve for x
    x = 6,198,727,824/50,847.75
  6. Step 6: Final answer
    x = 121,907.61

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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.