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Finding the Third Proportional to 28,443 and 66,450

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Solution

The third proportional to 28,443 and 66,450 is: 155,243.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,443 : 66,450 = 66,450 : x
  2. Step 2: Convert to fraction form
    28,443/66,450 = 66,450/x
  3. Step 3: Cross multiply
    28,443x = 66,450 × 66,450
  4. Step 4: Simplify right side
    28,443x = 4,415,602,500
  5. Step 5: Solve for x
    x = 4,415,602,500/28,443
  6. Step 6: Final answer
    x = 155,243.91

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.