Answer:
0.875
Explanations:
Scale factors are ratios between the corresponding measurement of an object. From the given question, we are given the following parameters
Diameter of the largest bowl (B₁) = 32cm
Diameter of the second-largest bowl (B₂) = 28cm
Calculate the scale factor "k"
![k=(B_2)/(B_1)](https://img.qammunity.org/2023/formulas/mathematics/college/vszbxg7dui0y5a70aqteif6vrgrdjdf8ks.png)
Substitute the given parameters to have:
![\begin{gathered} k=(28)/(32) \\ k=0.875 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/pkx53acly2z2yro0hhdjfigg3l54wb47op.png)
Hence the scale factor relating the two largest bowls is 0.875