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Finding the Third Proportional to 13,260 and 16,626

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Solution

The third proportional to 13,260 and 16,626 is: 20,846.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260 : 16,626 = 16,626 : x
  2. Step 2: Convert to fraction form
    13,260/16,626 = 16,626/x
  3. Step 3: Cross multiply
    13,260x = 16,626 × 16,626
  4. Step 4: Simplify right side
    13,260x = 276,423,876
  5. Step 5: Solve for x
    x = 276,423,876/13,260
  6. Step 6: Final answer
    x = 20,846.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.