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Finding the Third Proportional to 4,247,247 and 9,240,990

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Solution

The third proportional to 4,247,247 and 9,240,990 is: 20,106,176.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,247,247 : 9,240,990 = 9,240,990 : x
  2. Step 2: Convert to fraction form
    4,247,247/9,240,990 = 9,240,990/x
  3. Step 3: Cross multiply
    4,247,247x = 9,240,990 × 9,240,990
  4. Step 4: Simplify right side
    4,247,247x = 85,395,896,180,100
  5. Step 5: Solve for x
    x = 85,395,896,180,100/4,247,247
  6. Step 6: Final answer
    x = 20,106,176.11

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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.