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We show that a linear scaling between the weak decay constants ofpseudoscalar and the vector mesons masses is supported by the availableexperimental data. The decay constant scale as $f_m/f_{pi}=M_V/M_{\rho}$ (f_mis decay constant and M_V vector meson ground state mass). This simple form isjustified within a renormalized light-front QCD-inpired model forquark-antiquark bound states.Comment: 4 pages, use revtex style. To appear "Brazilian Journal of Physics  (2003)

Weak decay constant of pseudoscalar mesons in a QCD-inspired model