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Finding the Third Proportional to 1,080 and 2,295

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Solution

The third proportional to 1,080 and 2,295 is: 4,876.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080 : 2,295 = 2,295 : x
  2. Step 2: Convert to fraction form
    1,080/2,295 = 2,295/x
  3. Step 3: Cross multiply
    1,080x = 2,295 × 2,295
  4. Step 4: Simplify right side
    1,080x = 5,267,025
  5. Step 5: Solve for x
    x = 5,267,025/1,080
  6. Step 6: Final answer
    x = 4,876.88

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.