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Finding the Third Proportional to 36,236.25 and 77,831.25

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Solution

The third proportional to 36,236.25 and 77,831.25 is: 167,172.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,236.25 : 77,831.25 = 77,831.25 : x
  2. Step 2: Convert to fraction form
    36,236.25/77,831.25 = 77,831.25/x
  3. Step 3: Cross multiply
    36,236.25x = 77,831.25 × 77,831.25
  4. Step 4: Simplify right side
    36,236.25x = 6,057,703,476.56
  5. Step 5: Solve for x
    x = 6,057,703,476.56/36,236.25
  6. Step 6: Final answer
    x = 167,172.47

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.