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Finding the Third Proportional to 822.38 and 1,164.38

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Solution

The third proportional to 822.38 and 1,164.38 is: 1,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    822.38 : 1,164.38 = 1,164.38 : x
  2. Step 2: Convert to fraction form
    822.38/1,164.38 = 1,164.38/x
  3. Step 3: Cross multiply
    822.38x = 1,164.38 × 1,164.38
  4. Step 4: Simplify right side
    822.38x = 1,355,769.14
  5. Step 5: Solve for x
    x = 1,355,769.14/822.38
  6. Step 6: Final answer
    x = 1,648.60

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.