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Finding the Third Proportional to 36,012 and 74,912

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Solution

The third proportional to 36,012 and 74,912 is: 155,831.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,012 : 74,912 = 74,912 : x
  2. Step 2: Convert to fraction form
    36,012/74,912 = 74,912/x
  3. Step 3: Cross multiply
    36,012x = 74,912 × 74,912
  4. Step 4: Simplify right side
    36,012x = 5,611,807,744
  5. Step 5: Solve for x
    x = 5,611,807,744/36,012
  6. Step 6: Final answer
    x = 155,831.60

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.