The chief engineer in charge of refinery operations was not satisfied with the preliminary design for storage tanks to be used as part of a plant expansion program. The engineer who submitted the design was called in and asked to reconsider the overall dimensions of the light in the article in The Chemical Engineer, titled "How to Size Future Process Vessels." The original design submitted called for 4 tanks 5.2 meters in diameter and 7.0 meters high. From a graph in the article, the engineer found that the present ratio of height to diameter of 1.35 was 111% of the minimum cost and that the minimum cost for a tank occurred when the ratio of height to diameter was 4 to 1. The cost for the tank design as originally submitted was estimated to be $28,000. What are the optimum tank dimensions if the volume remains the same as for the original design? What total savings may be expected through redesign