**TI83F* AppVariable file 03/22/07, 10:13‰ xGLM207xvnav F441BD13B950415AA7EB861D73925D5FGLM207. GLM2071  cross products¦cross products:ÖThe product of the terms on the diagonals when two ratios are compared.ÖExample:ÖIn the proportionÖ2/3 = 8/12 the cross products are 2 12 andÖ3 8. equivalent ratios Nequivalent ratios: ÖTwo ratios that have the same value.ÖExample: 5:4 = 10:8Ö  proportionTproportion:ÖAn equation of the form a/b =c/d stating that two ratios are equivalent. ratebrate:ÖThe ratio of two measurements having different units of measure.ÖExample: Ö60 miles per hour ratio/ratio:ÖA comparison of two numbers by division. scaleVscale:ÖA ratio or rate between the actual size of an object and the size of its model.  scale drawing`scale drawing:ÖA drawing that is similar to an actual object, but is either enlarged or reduced.  scale factor:scale factor:ÖA scale written as a ratio in simplest form.   scale modelgscale model:ÖA replica of an original object that is too large or too small to be built at actual size.   unit rate*unit rate:ÖA rate with a denominator of 1.‚z