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Finding the Third Proportional to 2,907.56 and 6,394.78

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Solution

The third proportional to 2,907.56 and 6,394.78 is: 14,064.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.56 : 6,394.78 = 6,394.78 : x
  2. Step 2: Convert to fraction form
    2,907.56/6,394.78 = 6,394.78/x
  3. Step 3: Cross multiply
    2,907.56x = 6,394.78 × 6,394.78
  4. Step 4: Simplify right side
    2,907.56x = 40,893,227.24
  5. Step 5: Solve for x
    x = 40,893,227.24/2,907.56
  6. Step 6: Final answer
    x = 14,064.44

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.