26. Equipment cost estimation (7 points) Chapter 7, problem 11 in Turton's book. 11. You have been hired as a consultant to a legal firm. Part of your assignment is to determine the size of a storage tank purchased in 1978 (CEPCI = 219), before computerization of records. Many records from this era were destroyed in a fire (not in the plant, but in a distant office building). The tank was replaced every 10 years, and the sizes have changed due to plant capacity changes. You have the information in the table below. Estimate the original capacity of this vessel. a a Date 1978 1988 1998 Tank Capacity (1000 gal) ? 105 Purchased Cost $35,400 $45,300 $45,500 85 ho