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Finding the Third Proportional to 31,163 and 66,064

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Solution

The third proportional to 31,163 and 66,064 is: 140,052.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,163 : 66,064 = 66,064 : x
  2. Step 2: Convert to fraction form
    31,163/66,064 = 66,064/x
  3. Step 3: Cross multiply
    31,163x = 66,064 × 66,064
  4. Step 4: Simplify right side
    31,163x = 4,364,452,096
  5. Step 5: Solve for x
    x = 4,364,452,096/31,163
  6. Step 6: Final answer
    x = 140,052.37

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.