Apple and peach trees are planted in the orchard of the Grange Poser farm. The orchard has 30 apple trees that each give 150 kg of apples and 45 peach trees that each produce an average of 65 kg of fruit. What is the total mass of fruit harvested in this orchard? Give me reasons, before answering the question

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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Let’s first calculate what the apple trees produce: 30 trees * 150 kg / tree = 4500 kg. Then let's calculate what the peaches produce: 45 trees * 65 kg / tree = 2925 kg. We add these two masses: 4500 kg + 2925 kg = 7425 kg. So the final answer is 7425.