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Finding the Third Proportional to 1,815 and 4,333

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Solution

The third proportional to 1,815 and 4,333 is: 10,344.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815 : 4,333 = 4,333 : x
  2. Step 2: Convert to fraction form
    1,815/4,333 = 4,333/x
  3. Step 3: Cross multiply
    1,815x = 4,333 × 4,333
  4. Step 4: Simplify right side
    1,815x = 18,774,889
  5. Step 5: Solve for x
    x = 18,774,889/1,815
  6. Step 6: Final answer
    x = 10,344.29

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.