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Finding the Third Proportional to 36,816 and 78,792

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Solution

The third proportional to 36,816 and 78,792 is: 168,627.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,816 : 78,792 = 78,792 : x
  2. Step 2: Convert to fraction form
    36,816/78,792 = 78,792/x
  3. Step 3: Cross multiply
    36,816x = 78,792 × 78,792
  4. Step 4: Simplify right side
    36,816x = 6,208,179,264
  5. Step 5: Solve for x
    x = 6,208,179,264/36,816
  6. Step 6: Final answer
    x = 168,627.21

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.