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Finding the Third Proportional to 3,215,419.50 and 7,078,533

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Solution

The third proportional to 3,215,419.50 and 7,078,533 is: 15,582,921.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215,419.50 : 7,078,533 = 7,078,533 : x
  2. Step 2: Convert to fraction form
    3,215,419.50/7,078,533 = 7,078,533/x
  3. Step 3: Cross multiply
    3,215,419.50x = 7,078,533 × 7,078,533
  4. Step 4: Simplify right side
    3,215,419.50x = 50,105,629,432,089
  5. Step 5: Solve for x
    x = 50,105,629,432,089/3,215,419.50
  6. Step 6: Final answer
    x = 15,582,921.43

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.