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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def frac_vol_floc(ConcAluminum, ConcClay, coag, DIM_FRACTAL, material, DiamTarget):
 """Return the floc volume fraction."""

    return (frac_vol_floc_initial(ConcAluminum, ConcClay, coag, material)
            * (DiamTarget / material.Diameter)**(3-DIM_FRACTAL)
            )