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Finding the Third Proportional to 62,790.75 and 87,828.75

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Solution

The third proportional to 62,790.75 and 87,828.75 is: 122,850.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,790.75 : 87,828.75 = 87,828.75 : x
  2. Step 2: Convert to fraction form
    62,790.75/87,828.75 = 87,828.75/x
  3. Step 3: Cross multiply
    62,790.75x = 87,828.75 × 87,828.75
  4. Step 4: Simplify right side
    62,790.75x = 7,713,889,326.56
  5. Step 5: Solve for x
    x = 7,713,889,326.56/62,790.75
  6. Step 6: Final answer
    x = 122,850.73

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.