We have to apply the rule of three to solve this.
We will use the equivalencies of the first row to complete the others.
The cups of flour needed are 3 cups/loaf.
The water needed is 12 tablespoons/loaf.
The salt needed 1 teaspoon/loaf.
With these equivalencies we can calculate the ingredients needed for any number of loaves:
[tex]\begin{gathered} \text{Number of loaves}=2,\text{ then} \\ \text{Cups of flour}=2\text{ loaves}\cdot\frac{3\text{ cups}}{\text{ loaf}}=6\text{ cups} \\ \text{Water}=2\text{ loaves}\cdot\frac{12\text{ tablespoons}}{\text{ loaf}}=24\text{ tablespoons} \\ \text{Salt}=2\text{ loaves}\cdot\frac{1\text{ teaspoon}}{\text{ loaf}}=2\text{ teaspoons} \end{gathered}[/tex]
