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Finding the Third Proportional to 7,843,876 and 16,990,240

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Solution

The third proportional to 7,843,876 and 16,990,240 is: 36,801,736.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,843,876 : 16,990,240 = 16,990,240 : x
  2. Step 2: Convert to fraction form
    7,843,876/16,990,240 = 16,990,240/x
  3. Step 3: Cross multiply
    7,843,876x = 16,990,240 × 16,990,240
  4. Step 4: Simplify right side
    7,843,876x = 288,668,255,257,600
  5. Step 5: Solve for x
    x = 288,668,255,257,600/7,843,876
  6. Step 6: Final answer
    x = 36,801,736.19

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.