Puerto Rico is about 34 times smaller than Oman.

Oman is approximately 309,500 sq km, while Puerto Rico is approximately 9,104 sq km, making Puerto Rico 2.94% the size of Oman. Meanwhile, the population of Oman is ~5.5 million people (2.3 million fewer people live in Puerto Rico).
Tip: This to-scale comparison of Oman vs. Puerto Rico uses the Mercator projection, which distorts the size of regions near the poles.
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