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Finding the Third Proportional to 17,120.11 and 26,551.55

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Solution

The third proportional to 17,120.11 and 26,551.55 is: 41,178.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,120.11 : 26,551.55 = 26,551.55 : x
  2. Step 2: Convert to fraction form
    17,120.11/26,551.55 = 26,551.55/x
  3. Step 3: Cross multiply
    17,120.11x = 26,551.55 × 26,551.55
  4. Step 4: Simplify right side
    17,120.11x = 704,984,641.46
  5. Step 5: Solve for x
    x = 704,984,641.46/17,120.11
  6. Step 6: Final answer
    x = 41,178.75

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.