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Finding the Third Proportional to 192.50 and 424.66

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Solution

The third proportional to 192.50 and 424.66 is: 936.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.50 : 424.66 = 424.66 : x
  2. Step 2: Convert to fraction form
    192.50/424.66 = 424.66/x
  3. Step 3: Cross multiply
    192.50x = 424.66 × 424.66
  4. Step 4: Simplify right side
    192.50x = 180,332.93
  5. Step 5: Solve for x
    x = 180,332.93/192.50
  6. Step 6: Final answer
    x = 936.79

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.