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Finding the Third Proportional to 4,135,987 and 9,088,408

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Solution

The third proportional to 4,135,987 and 9,088,408 is: 19,970,846.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,135,987 : 9,088,408 = 9,088,408 : x
  2. Step 2: Convert to fraction form
    4,135,987/9,088,408 = 9,088,408/x
  3. Step 3: Cross multiply
    4,135,987x = 9,088,408 × 9,088,408
  4. Step 4: Simplify right side
    4,135,987x = 82,599,159,974,464
  5. Step 5: Solve for x
    x = 82,599,159,974,464/4,135,987
  6. Step 6: Final answer
    x = 19,970,846.13

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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.