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Finding the Third Proportional to 857,912 and 1,829,822

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Solution

The third proportional to 857,912 and 1,829,822 is: 3,902,787.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,912 : 1,829,822 = 1,829,822 : x
  2. Step 2: Convert to fraction form
    857,912/1,829,822 = 1,829,822/x
  3. Step 3: Cross multiply
    857,912x = 1,829,822 × 1,829,822
  4. Step 4: Simplify right side
    857,912x = 3,348,248,551,684
  5. Step 5: Solve for x
    x = 3,348,248,551,684/857,912
  6. Step 6: Final answer
    x = 3,902,787.88

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.