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Finding the Third Proportional to 66,874 and 89,232

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Solution

The third proportional to 66,874 and 89,232 is: 119,064.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,874 : 89,232 = 89,232 : x
  2. Step 2: Convert to fraction form
    66,874/89,232 = 89,232/x
  3. Step 3: Cross multiply
    66,874x = 89,232 × 89,232
  4. Step 4: Simplify right side
    66,874x = 7,962,349,824
  5. Step 5: Solve for x
    x = 7,962,349,824/66,874
  6. Step 6: Final answer
    x = 119,064.96

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.