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Finding the Third Proportional to 869,672 and 1,893,728

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Solution

The third proportional to 869,672 and 1,893,728 is: 4,123,630.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,672 : 1,893,728 = 1,893,728 : x
  2. Step 2: Convert to fraction form
    869,672/1,893,728 = 1,893,728/x
  3. Step 3: Cross multiply
    869,672x = 1,893,728 × 1,893,728
  4. Step 4: Simplify right side
    869,672x = 3,586,205,737,984
  5. Step 5: Solve for x
    x = 3,586,205,737,984/869,672
  6. Step 6: Final answer
    x = 4,123,630.22

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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.