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Finding the Third Proportional to 40,428,544 and 87,940,608

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Solution

The third proportional to 40,428,544 and 87,940,608 is: 191,289,365.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,428,544 : 87,940,608 = 87,940,608 : x
  2. Step 2: Convert to fraction form
    40,428,544/87,940,608 = 87,940,608/x
  3. Step 3: Cross multiply
    40,428,544x = 87,940,608 × 87,940,608
  4. Step 4: Simplify right side
    40,428,544x = 7,733,550,535,409,664
  5. Step 5: Solve for x
    x = 7,733,550,535,409,664/40,428,544
  6. Step 6: Final answer
    x = 191,289,365.64

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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.