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Finding the Third Proportional to 17,151.75 and 22,020.75

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Solution

The third proportional to 17,151.75 and 22,020.75 is: 28,271.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,151.75 : 22,020.75 = 22,020.75 : x
  2. Step 2: Convert to fraction form
    17,151.75/22,020.75 = 22,020.75/x
  3. Step 3: Cross multiply
    17,151.75x = 22,020.75 × 22,020.75
  4. Step 4: Simplify right side
    17,151.75x = 484,913,430.56
  5. Step 5: Solve for x
    x = 484,913,430.56/17,151.75
  6. Step 6: Final answer
    x = 28,271.95

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.