There is no way to send one tank of fuel into orbit by using just one tank of fuel.
in the real world, a Falcon 9 has a launch payload of 13,150 kg and a takeoff weight of 505,850 kg, which means the mass ratio is about 2.6%.
Rocket mass ejection propulsion technology is the least efficient method of mass acceleration. The boosters only last 3 minutes. How long does the upper stage last?
Even the largest rockets can't travel around the Earth on a flat highway without refueling multiple times, so how do rockets get payloads into orbit or Mars?
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