The estimated value can be given by 21.76
To solve this expression, let's just:
- divide both terms between themselves, and then approximate the result.:
![\\\large \sf 102.3 / 4.7 = 21.7659574468\\](https://img.qammunity.org/2019/formulas/mathematics/middle-school/j41o8q6rxalcfv8k5xkx701jv4y3eawrvr.png)
We can make the approximation to the first two numbers after the point, thus having the result
![\red{\boxed{\large \sf \approx 21.76}}](https://img.qammunity.org/2019/formulas/mathematics/middle-school/qn0yhq9mcta5j9jo3xhpf6w9dw64kdmiw7.png)
So, the answer will be 21.76