I need help creating a script that will clone with math?

Hey guys. I have this script here that successfully clones the variable "Tracks" and puts it directly in front of the previous tracks. I was wondering if its possible to use math to add 24 to X position (i figured out the size between the tracks) that would put it directly in front of the cloned one, so when a train crosses over the part that has the ontouched script it, it will clone the tracks again and again, so in theory will go forever.

function hit (track)
    local part = game.Workspace.Tracks
local cloned = part:Clone()
cloned.Parent = game.Workspace

    cloned.Position = Vector3.new(-39, 5, -34)
end

script.Parent.Touched:Connect(hit)

if this explanation is hard to read please tell me. Thanks!