Finding the Third Proportional to 5,760 and 6,960
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Solution
The third proportional to 5,760 and 6,960 is: 8,410
Step by Step Solution
- Step 1: Write the proportion equation
5,760 : 6,960 = 6,960 : x - Step 2: Convert to fraction form
5,760/6,960 = 6,960/x - Step 3: Cross multiply
5,760x = 6,960 × 6,960 - Step 4: Simplify right side
5,760x = 48,441,600 - Step 5: Solve for x
x = 48,441,600/5,760 - Step 6: Final answer
x = 8,410
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Why These Related Problems?
These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.