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Finding the Third Proportional to 43,108 and 66,580

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Solution

The third proportional to 43,108 and 66,580 is: 102,832.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,108 : 66,580 = 66,580 : x
  2. Step 2: Convert to fraction form
    43,108/66,580 = 66,580/x
  3. Step 3: Cross multiply
    43,108x = 66,580 × 66,580
  4. Step 4: Simplify right side
    43,108x = 4,432,896,400
  5. Step 5: Solve for x
    x = 4,432,896,400/43,108
  6. Step 6: Final answer
    x = 102,832.34

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.