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Finding the Third Proportional to 434.25 and 936.38

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Solution

The third proportional to 434.25 and 936.38 is: 2,019.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.25 : 936.38 = 936.38 : x
  2. Step 2: Convert to fraction form
    434.25/936.38 = 936.38/x
  3. Step 3: Cross multiply
    434.25x = 936.38 × 936.38
  4. Step 4: Simplify right side
    434.25x = 876,798.14
  5. Step 5: Solve for x
    x = 876,798.14/434.25
  6. Step 6: Final answer
    x = 2,019.11

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.