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Finding the Third Proportional to 3,421.13 and 7,388.44

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Solution

The third proportional to 3,421.13 and 7,388.44 is: 15,956.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.13 : 7,388.44 = 7,388.44 : x
  2. Step 2: Convert to fraction form
    3,421.13/7,388.44 = 7,388.44/x
  3. Step 3: Cross multiply
    3,421.13x = 7,388.44 × 7,388.44
  4. Step 4: Simplify right side
    3,421.13x = 54,589,008.69
  5. Step 5: Solve for x
    x = 54,589,008.69/3,421.13
  6. Step 6: Final answer
    x = 15,956.45

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.