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Finding the Third Proportional to 985,247 and 2,117,836

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Solution

The third proportional to 985,247 and 2,117,836 is: 4,552,390.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,247 : 2,117,836 = 2,117,836 : x
  2. Step 2: Convert to fraction form
    985,247/2,117,836 = 2,117,836/x
  3. Step 3: Cross multiply
    985,247x = 2,117,836 × 2,117,836
  4. Step 4: Simplify right side
    985,247x = 4,485,229,322,896
  5. Step 5: Solve for x
    x = 4,485,229,322,896/985,247
  6. Step 6: Final answer
    x = 4,552,390.74

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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.