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Finding the Third Proportional to 4,190,808 and 9,149,256

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Solution

The third proportional to 4,190,808 and 9,149,256 is: 19,974,402.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190,808 : 9,149,256 = 9,149,256 : x
  2. Step 2: Convert to fraction form
    4,190,808/9,149,256 = 9,149,256/x
  3. Step 3: Cross multiply
    4,190,808x = 9,149,256 × 9,149,256
  4. Step 4: Simplify right side
    4,190,808x = 83,708,885,353,536
  5. Step 5: Solve for x
    x = 83,708,885,353,536/4,190,808
  6. Step 6: Final answer
    x = 19,974,402.40

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.