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Finding the Third Proportional to 3,920,038 and 8,440,650

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Solution

The third proportional to 3,920,038 and 8,440,650 is: 18,174,459.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920,038 : 8,440,650 = 8,440,650 : x
  2. Step 2: Convert to fraction form
    3,920,038/8,440,650 = 8,440,650/x
  3. Step 3: Cross multiply
    3,920,038x = 8,440,650 × 8,440,650
  4. Step 4: Simplify right side
    3,920,038x = 71,244,572,422,500
  5. Step 5: Solve for x
    x = 71,244,572,422,500/3,920,038
  6. Step 6: Final answer
    x = 18,174,459.64

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.