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The Indirect Rule of Three. Is performed the same as in vulgar arithmetick after the numbers are prepared as taught in Decimals. If when the Bushell of Weight is: 6s:8d a Penny Loaf weighs 5 1/2 ounces, what will it weigh when wheat is 10s per bushel? 6s:8d : 5 1/2 oz : : 10s 12 |8.00 2|1.0 2/0 |10 ----- --- --- 2/0|6.6666|5.5 .5 --------- .33333 55 ------ 166665 166665 ------- .5|1.833315 ---------- oz 3.66663 16 ----- Dr. 10.66608