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Finding the Third Proportional to 622.69 and 1,161.84

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Solution

The third proportional to 622.69 and 1,161.84 is: 2,167.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.69 : 1,161.84 = 1,161.84 : x
  2. Step 2: Convert to fraction form
    622.69/1,161.84 = 1,161.84/x
  3. Step 3: Cross multiply
    622.69x = 1,161.84 × 1,161.84
  4. Step 4: Simplify right side
    622.69x = 1,349,880.90
  5. Step 5: Solve for x
    x = 1,349,880.90/622.69
  6. Step 6: Final answer
    x = 2,167.83

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.