High-resolution measurements of the Kβ1,3 low-energy satellites of 42Mo, 44Ru, 46Pd, 48Cd, and 50Sn were performed. The photoinduced x-ray spectra were measured with a transmission-type bent-crystal spectrometer. Particular groups of K-MM radiative Auger effect (RAE) transitions could be identified. The intensity ratios I(K-MM RAE) / I(Kβ13) were extracted. They are compared to relativistic Hartree-Fock theoretical predictions of Scofield. The experimental energies of the RAE edges are compared to calculated Auger transition energies. The present experiment provides experimental RAE results for solid elements with Z>=42.