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Finding the Third Proportional to 1,902,796.31 and 3,992,427.56

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Solution

The third proportional to 1,902,796.31 and 3,992,427.56 is: 8,376,870.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902,796.31 : 3,992,427.56 = 3,992,427.56 : x
  2. Step 2: Convert to fraction form
    1,902,796.31/3,992,427.56 = 3,992,427.56/x
  3. Step 3: Cross multiply
    1,902,796.31x = 3,992,427.56 × 3,992,427.56
  4. Step 4: Simplify right side
    1,902,796.31x = 15,939,477,841,809.69
  5. Step 5: Solve for x
    x = 15,939,477,841,809.69/1,902,796.31
  6. Step 6: Final answer
    x = 8,376,870.26

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.