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Finding the Third Proportional to 63,792 and 135,888

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Solution

The third proportional to 63,792 and 135,888 is: 289,464.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,792 : 135,888 = 135,888 : x
  2. Step 2: Convert to fraction form
    63,792/135,888 = 135,888/x
  3. Step 3: Cross multiply
    63,792x = 135,888 × 135,888
  4. Step 4: Simplify right side
    63,792x = 18,465,548,544
  5. Step 5: Solve for x
    x = 18,465,548,544/63,792
  6. Step 6: Final answer
    x = 289,464.96

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.