Given:
The triangles DEF is similar to GHF.
The objective is to find a similar ratio of DF/DE.
Step-by-step explanation:
Using the basic proportionality theorem, for the similar triangles DEF and GHF,
![(DE)/(GH)=(DF)/(GF)=(EF)/(HF)\text{ . . . . .. .(1)}](https://img.qammunity.org/2023/formulas/mathematics/high-school/1prb137ettlu5ztefsmgymlj8qmw569vz2.png)
Considering the first two ratios of equation (1),
![(DE)/(GH)=(DF)/(GF)](https://img.qammunity.org/2023/formulas/mathematics/high-school/d24dupew18lm1zs93gabc2bad3t670dunz.png)
On interchanging the segments further,
![(DF)/(DE)=(GF)/(GH)](https://img.qammunity.org/2023/formulas/mathematics/high-school/5oqsbu8b9iickm1xwa36uu468tvu3v8dy7.png)
Hence, the required segment in the blanks is GF/GH.