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Finding the Third Proportional to 40,003,781 and 87,276,089

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Solution

The third proportional to 40,003,781 and 87,276,089 is: 190,409,894.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,003,781 : 87,276,089 = 87,276,089 : x
  2. Step 2: Convert to fraction form
    40,003,781/87,276,089 = 87,276,089/x
  3. Step 3: Cross multiply
    40,003,781x = 87,276,089 × 87,276,089
  4. Step 4: Simplify right side
    40,003,781x = 7,617,115,711,135,921
  5. Step 5: Solve for x
    x = 7,617,115,711,135,921/40,003,781
  6. Step 6: Final answer
    x = 190,409,894.28

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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.