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Finding the Third Proportional to 8,638,214 and 19,997,992

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Solution

The third proportional to 8,638,214 and 19,997,992 is: 46,296,570.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,638,214 : 19,997,992 = 19,997,992 : x
  2. Step 2: Convert to fraction form
    8,638,214/19,997,992 = 19,997,992/x
  3. Step 3: Cross multiply
    8,638,214x = 19,997,992 × 19,997,992
  4. Step 4: Simplify right side
    8,638,214x = 399,919,684,032,064
  5. Step 5: Solve for x
    x = 399,919,684,032,064/8,638,214
  6. Step 6: Final answer
    x = 46,296,570.57

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.