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Finding the Third Proportional to 7,907.88 and 11,839.88

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Solution

The third proportional to 7,907.88 and 11,839.88 is: 17,726.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.88 : 11,839.88 = 11,839.88 : x
  2. Step 2: Convert to fraction form
    7,907.88/11,839.88 = 11,839.88/x
  3. Step 3: Cross multiply
    7,907.88x = 11,839.88 × 11,839.88
  4. Step 4: Simplify right side
    7,907.88x = 140,182,640.02
  5. Step 5: Solve for x
    x = 140,182,640.02/7,907.88
  6. Step 6: Final answer
    x = 17,726.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.