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Finding the Third Proportional to 580.38 and 1,245.13

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Solution

The third proportional to 580.38 and 1,245.13 is: 2,671.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.38 : 1,245.13 = 1,245.13 : x
  2. Step 2: Convert to fraction form
    580.38/1,245.13 = 1,245.13/x
  3. Step 3: Cross multiply
    580.38x = 1,245.13 × 1,245.13
  4. Step 4: Simplify right side
    580.38x = 1,550,336.27
  5. Step 5: Solve for x
    x = 1,550,336.27/580.38
  6. Step 6: Final answer
    x = 2,671.27

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.