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my @test = (
    "text text text 1 text",
...
my @filtered = map {/(\d+)(?:\.0*)?\D*$/; $1} @test;

print join "\n", @filtered;

my @filtered = map {/(\d+(?:\.\d*)?)\D*$/; 0 + $1 || ''} @test;

print join "\n", @filtered;