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Finding the Third Proportional to 1,553.63 and 3,372.38

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Solution

The third proportional to 1,553.63 and 3,372.38 is: 7,320.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.63 : 3,372.38 = 3,372.38 : x
  2. Step 2: Convert to fraction form
    1,553.63/3,372.38 = 3,372.38/x
  3. Step 3: Cross multiply
    1,553.63x = 3,372.38 × 3,372.38
  4. Step 4: Simplify right side
    1,553.63x = 11,372,913.14
  5. Step 5: Solve for x
    x = 11,372,913.14/1,553.63
  6. Step 6: Final answer
    x = 7,320.24

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.