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Finding the Third Proportional to 8,739,431.72 and 13,230,608.34

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Solution

The third proportional to 8,739,431.72 and 13,230,608.34 is: 20,029,791.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739,431.72 : 13,230,608.34 = 13,230,608.34 : x
  2. Step 2: Convert to fraction form
    8,739,431.72/13,230,608.34 = 13,230,608.34/x
  3. Step 3: Cross multiply
    8,739,431.72x = 13,230,608.34 × 13,230,608.34
  4. Step 4: Simplify right side
    8,739,431.72x = 175,048,997,145,707.12
  5. Step 5: Solve for x
    x = 175,048,997,145,707.12/8,739,431.72
  6. Step 6: Final answer
    x = 20,029,791.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.