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Finding the Third Proportional to 3,418,557.22 and 5,214,655.18

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Solution

The third proportional to 3,418,557.22 and 5,214,655.18 is: 7,954,416.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418,557.22 : 5,214,655.18 = 5,214,655.18 : x
  2. Step 2: Convert to fraction form
    3,418,557.22/5,214,655.18 = 5,214,655.18/x
  3. Step 3: Cross multiply
    3,418,557.22x = 5,214,655.18 × 5,214,655.18
  4. Step 4: Simplify right side
    3,418,557.22x = 27,192,628,622,671.14
  5. Step 5: Solve for x
    x = 27,192,628,622,671.14/3,418,557.22
  6. Step 6: Final answer
    x = 7,954,416.69

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.