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Finding the Third Proportional to 68,922 and 90,733.50

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Solution

The third proportional to 68,922 and 90,733.50 is: 119,447.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,922 : 90,733.50 = 90,733.50 : x
  2. Step 2: Convert to fraction form
    68,922/90,733.50 = 90,733.50/x
  3. Step 3: Cross multiply
    68,922x = 90,733.50 × 90,733.50
  4. Step 4: Simplify right side
    68,922x = 8,232,568,022.25
  5. Step 5: Solve for x
    x = 8,232,568,022.25/68,922
  6. Step 6: Final answer
    x = 119,447.61

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.