г) \(3\frac{1}{3} : k = 1\frac{1}{3} : 2\)
- \(\frac{10}{3} : k = \frac{4}{3} : 2\)
- \(\frac{4}{3} : 2 = \frac{4}{3} \cdot \frac{1}{2} = \frac{4}{6} = \frac{2}{3}\)
- \(\frac{10}{3} : k = \frac{2}{3}\)
- \(k = \frac{10}{3} : \frac{2}{3}\)
- \(k = \frac{10}{3} \cdot \frac{3}{2}\)
- \(k = \frac{10 \cdot 3}{3 \cdot 2}\)
- \(k = \frac{10}{2}\)
- \(k = 5\)
Ответ: 5