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Finding the Third Proportional to 7,648.75 and 16,216.75

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Solution

The third proportional to 7,648.75 and 16,216.75 is: 34,382.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,648.75 : 16,216.75 = 16,216.75 : x
  2. Step 2: Convert to fraction form
    7,648.75/16,216.75 = 16,216.75/x
  3. Step 3: Cross multiply
    7,648.75x = 16,216.75 × 16,216.75
  4. Step 4: Simplify right side
    7,648.75x = 262,982,980.56
  5. Step 5: Solve for x
    x = 262,982,980.56/7,648.75
  6. Step 6: Final answer
    x = 34,382.48

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.