To determine the total number of doctors we can use a rule of three. In this case we know that 43400 represents the 17.6%, let x be the total number of doctors that is x represents 100%; then we have:
[tex]\begin{gathered} 43400\rightarrow17.6\% \\ x\rightarrow100\% \end{gathered}[/tex]Then:
[tex]\begin{gathered} x=\frac{(100\%)(43400)}{(17.6\%)} \\ x=246591 \end{gathered}[/tex]Threfore, there are a total of 246591 doctors.