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Finding the Third Proportional to 6,456.38 and 8,448.75

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Solution

The third proportional to 6,456.38 and 8,448.75 is: 11,055.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,456.38 : 8,448.75 = 8,448.75 : x
  2. Step 2: Convert to fraction form
    6,456.38/8,448.75 = 8,448.75/x
  3. Step 3: Cross multiply
    6,456.38x = 8,448.75 × 8,448.75
  4. Step 4: Simplify right side
    6,456.38x = 71,381,376.56
  5. Step 5: Solve for x
    x = 71,381,376.56/6,456.38
  6. Step 6: Final answer
    x = 11,055.95

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.