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Finding the Third Proportional to 6,819.19 and 11,071.69

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Solution

The third proportional to 6,819.19 and 11,071.69 is: 17,976.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,819.19 : 11,071.69 = 11,071.69 : x
  2. Step 2: Convert to fraction form
    6,819.19/11,071.69 = 11,071.69/x
  3. Step 3: Cross multiply
    6,819.19x = 11,071.69 × 11,071.69
  4. Step 4: Simplify right side
    6,819.19x = 122,582,264.10
  5. Step 5: Solve for x
    x = 122,582,264.10/6,819.19
  6. Step 6: Final answer
    x = 17,976.08

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.