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Consider the following three investment projects and answer the requirement below (Ignore income taxes.): Investment required Present value of cash inflows Project Project R $ 17,600 $ 52,100 $ 18,136 $ 59,476 Projects $ 82,500 $ 91,405 The only cash outflows are the initial investments in the projects. Required: Rank the investment projects using the project profitability index. Rank 1 Rank 2 Rank 3