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Finding the Third Proportional to 11,172 and 17,283

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Solution

The third proportional to 11,172 and 17,283 is: 26,736.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172 : 17,283 = 17,283 : x
  2. Step 2: Convert to fraction form
    11,172/17,283 = 17,283/x
  3. Step 3: Cross multiply
    11,172x = 17,283 × 17,283
  4. Step 4: Simplify right side
    11,172x = 298,702,089
  5. Step 5: Solve for x
    x = 298,702,089/11,172
  6. Step 6: Final answer
    x = 26,736.67

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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.