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Finding the Third Proportional to 1,903,968 and 4,121,424

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Solution

The third proportional to 1,903,968 and 4,121,424 is: 8,921,439.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903,968 : 4,121,424 = 4,121,424 : x
  2. Step 2: Convert to fraction form
    1,903,968/4,121,424 = 4,121,424/x
  3. Step 3: Cross multiply
    1,903,968x = 4,121,424 × 4,121,424
  4. Step 4: Simplify right side
    1,903,968x = 16,986,135,787,776
  5. Step 5: Solve for x
    x = 16,986,135,787,776/1,903,968
  6. Step 6: Final answer
    x = 8,921,439.74

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.