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Finding the Third Proportional to 8,275.50 and 13,212.75

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Solution

The third proportional to 8,275.50 and 13,212.75 is: 21,095.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.50 : 13,212.75 = 13,212.75 : x
  2. Step 2: Convert to fraction form
    8,275.50/13,212.75 = 13,212.75/x
  3. Step 3: Cross multiply
    8,275.50x = 13,212.75 × 13,212.75
  4. Step 4: Simplify right side
    8,275.50x = 174,576,762.56
  5. Step 5: Solve for x
    x = 174,576,762.56/8,275.50
  6. Step 6: Final answer
    x = 21,095.62

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.