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Finding the Third Proportional to 1,080.75 and 1,586.75

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Solution

The third proportional to 1,080.75 and 1,586.75 is: 2,329.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080.75 : 1,586.75 = 1,586.75 : x
  2. Step 2: Convert to fraction form
    1,080.75/1,586.75 = 1,586.75/x
  3. Step 3: Cross multiply
    1,080.75x = 1,586.75 × 1,586.75
  4. Step 4: Simplify right side
    1,080.75x = 2,517,775.56
  5. Step 5: Solve for x
    x = 2,517,775.56/1,080.75
  6. Step 6: Final answer
    x = 2,329.66

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.