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Finding the Third Proportional to 1,808 and 4,331

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Solution

The third proportional to 1,808 and 4,331 is: 10,374.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808 : 4,331 = 4,331 : x
  2. Step 2: Convert to fraction form
    1,808/4,331 = 4,331/x
  3. Step 3: Cross multiply
    1,808x = 4,331 × 4,331
  4. Step 4: Simplify right side
    1,808x = 18,757,561
  5. Step 5: Solve for x
    x = 18,757,561/1,808
  6. Step 6: Final answer
    x = 10,374.76

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Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.