The calculated distance (air line) between Povolzhskiy and Petra-Dubrava is approximately 32 miles respectively 51 kilometers.
By car or train, the actual journey to Petra-Dubrava is certainly longer, as only the direct route (as the crow flies) between Povolzhskiy and Petra-Dubrava has been calculated here.
Air line (approximately)
51 kilometers
28 nautical miles