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Finding the Third Proportional to 15,176 and 16,616

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Solution

The third proportional to 15,176 and 16,616 is: 18,192.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,176 : 16,616 = 16,616 : x
  2. Step 2: Convert to fraction form
    15,176/16,616 = 16,616/x
  3. Step 3: Cross multiply
    15,176x = 16,616 × 16,616
  4. Step 4: Simplify right side
    15,176x = 276,091,456
  5. Step 5: Solve for x
    x = 276,091,456/15,176
  6. Step 6: Final answer
    x = 18,192.64

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.