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Finding the Third Proportional to 980.44 and 1,331.44

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Solution

The third proportional to 980.44 and 1,331.44 is: 1,808.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    980.44 : 1,331.44 = 1,331.44 : x
  2. Step 2: Convert to fraction form
    980.44/1,331.44 = 1,331.44/x
  3. Step 3: Cross multiply
    980.44x = 1,331.44 × 1,331.44
  4. Step 4: Simplify right side
    980.44x = 1,772,725.82
  5. Step 5: Solve for x
    x = 1,772,725.82/980.44
  6. Step 6: Final answer
    x = 1,808.10

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.