The bank charges an exorbitant rate of interest. The similar to the underlined word is-

The word similar in meaning to "exorbitant," as used in the sentence "The bank charges an exorbitant rate of interest," is "excessive."

Explanation:

• "Exorbitant" typically refers to something that is unreasonably high or excessive, especially in terms of price or charges.

• "Excessive" is a direct synonym, as it also means more than is necessary, normal, or desirable; excessively high.

• The other options don't align with this meaning: "marvelous" refers to something wonderful or extraordinarily good, "moderate" implies average in amount or intensity, and "increasing" means becoming greater or larger, which doesn't necessarily carry the connotation of being unreasonably high.