EDITED how would I make a tween script to grow every part relative to their own size?

I want to grow every part named "GasPart". But it grows every part with this name to the same size. These parts are all different sizes, so could they all grow the same amount on the y axis?

for k,n in pairs(game.Workspace:GetChildren()) do

	if n.Name == "GasPart" then     
		SizeOfX = n.Size.x

	end
end

local TweenService = game:GetService("TweenService")
local GasPart = game.Workspace.GasPart
local y = 17.051
local z = 11.5
local x = SizeOfX
	
local Info = TweenInfo.new(
	1,
	Enum.EasingStyle.Linear,
	Enum.EasingDirection.InOut,
	-1,
	true,
	0   
)

local Goals = {
	Size = Vector3.new(x, y, z);
}

for k,n in pairs(game.Workspace:GetChildren()) do

	if n.Name == "GasPart" then     
		local exampletween = TweenService:Create(n, Info, Goals)
		exampletween:Play() 
	end
end