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Finding the Third Proportional to 18,206,556 and 39,111,960

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Solution

The third proportional to 18,206,556 and 39,111,960 is: 84,021,679.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,206,556 : 39,111,960 = 39,111,960 : x
  2. Step 2: Convert to fraction form
    18,206,556/39,111,960 = 39,111,960/x
  3. Step 3: Cross multiply
    18,206,556x = 39,111,960 × 39,111,960
  4. Step 4: Simplify right side
    18,206,556x = 1,529,745,415,041,600
  5. Step 5: Solve for x
    x = 1,529,745,415,041,600/18,206,556
  6. Step 6: Final answer
    x = 84,021,679.61

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.