A chef is preparing a large batch of soup and needs to measure out different quantities of ingredients. He has a recipe that requires 4 liters of broth, 2 liters of diced tomatoes, and 1 liter of cream. If he decides to scale up the recipe by a factor of 3, how many liters of each ingredient will he need? Additionally, if he then decides to combine this scaled-up batch with another batch that is double the original recipe size, how many total liters of soup will he have? Let's think step by step and output the final answer within \boxed{}.
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