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Finding the Third Proportional to 89.63 and 192.56

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Solution

The third proportional to 89.63 and 192.56 is: 413.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89.63 : 192.56 = 192.56 : x
  2. Step 2: Convert to fraction form
    89.63/192.56 = 192.56/x
  3. Step 3: Cross multiply
    89.63x = 192.56 × 192.56
  4. Step 4: Simplify right side
    89.63x = 37,080.32
  5. Step 5: Solve for x
    x = 37,080.32/89.63
  6. Step 6: Final answer
    x = 413.73

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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.