Determine the absolute numerical scale to replace an equivalent scale of 25mm. = 20km. Click to Show/Hide Solution \[ MS = \frac{MD}{GD} \] \[ MS = \frac{25mm. (\frac{1m.}{1000mm.}) (\frac{1km.}{1000m.})}{20km.} \] \[ MS = \frac{1}{800000} \leftarrow \text{answer} \]