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Finding the Third Proportional to 28,620.75 and 43,782.75

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Solution

The third proportional to 28,620.75 and 43,782.75 is: 66,976.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,620.75 : 43,782.75 = 43,782.75 : x
  2. Step 2: Convert to fraction form
    28,620.75/43,782.75 = 43,782.75/x
  3. Step 3: Cross multiply
    28,620.75x = 43,782.75 × 43,782.75
  4. Step 4: Simplify right side
    28,620.75x = 1,916,929,197.56
  5. Step 5: Solve for x
    x = 1,916,929,197.56/28,620.75
  6. Step 6: Final answer
    x = 66,976.90

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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.