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Finding the Third Proportional to 6,516 and 11,187

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Solution

The third proportional to 6,516 and 11,187 is: 19,206.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516 : 11,187 = 11,187 : x
  2. Step 2: Convert to fraction form
    6,516/11,187 = 11,187/x
  3. Step 3: Cross multiply
    6,516x = 11,187 × 11,187
  4. Step 4: Simplify right side
    6,516x = 125,148,969
  5. Step 5: Solve for x
    x = 125,148,969/6,516
  6. Step 6: Final answer
    x = 19,206.41

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Why These Related Problems?

These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.