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Finding the Third Proportional to 1,398 and 3,036

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Solution

The third proportional to 1,398 and 3,036 is: 6,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398 : 3,036 = 3,036 : x
  2. Step 2: Convert to fraction form
    1,398/3,036 = 3,036/x
  3. Step 3: Cross multiply
    1,398x = 3,036 × 3,036
  4. Step 4: Simplify right side
    1,398x = 9,217,296
  5. Step 5: Solve for x
    x = 9,217,296/1,398
  6. Step 6: Final answer
    x = 6,593.20

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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.