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Finding the Third Proportional to 2,133.19 and 4,372.69

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Solution

The third proportional to 2,133.19 and 4,372.69 is: 8,963.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.19 : 4,372.69 = 4,372.69 : x
  2. Step 2: Convert to fraction form
    2,133.19/4,372.69 = 4,372.69/x
  3. Step 3: Cross multiply
    2,133.19x = 4,372.69 × 4,372.69
  4. Step 4: Simplify right side
    2,133.19x = 19,120,395.97
  5. Step 5: Solve for x
    x = 19,120,395.97/2,133.19
  6. Step 6: Final answer
    x = 8,963.30

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.