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Finding the Third Proportional to 7,581 and 11,696

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Solution

The third proportional to 7,581 and 11,696 is: 18,044.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581 : 11,696 = 11,696 : x
  2. Step 2: Convert to fraction form
    7,581/11,696 = 11,696/x
  3. Step 3: Cross multiply
    7,581x = 11,696 × 11,696
  4. Step 4: Simplify right side
    7,581x = 136,796,416
  5. Step 5: Solve for x
    x = 136,796,416/7,581
  6. Step 6: Final answer
    x = 18,044.64

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.