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Finding the Third Proportional to 5,553 and 9,018

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Solution

The third proportional to 5,553 and 9,018 is: 14,645.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553 : 9,018 = 9,018 : x
  2. Step 2: Convert to fraction form
    5,553/9,018 = 9,018/x
  3. Step 3: Cross multiply
    5,553x = 9,018 × 9,018
  4. Step 4: Simplify right side
    5,553x = 81,324,324
  5. Step 5: Solve for x
    x = 81,324,324/5,553
  6. Step 6: Final answer
    x = 14,645.12

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.