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Finding the Third Proportional to 1,808.44 and 4,309.88

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Solution

The third proportional to 1,808.44 and 4,309.88 is: 10,271.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808.44 : 4,309.88 = 4,309.88 : x
  2. Step 2: Convert to fraction form
    1,808.44/4,309.88 = 4,309.88/x
  3. Step 3: Cross multiply
    1,808.44x = 4,309.88 × 4,309.88
  4. Step 4: Simplify right side
    1,808.44x = 18,575,022.52
  5. Step 5: Solve for x
    x = 18,575,022.52/1,808.44
  6. Step 6: Final answer
    x = 10,271.31

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Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.