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Finding the Third Proportional to 1,335 and 3,631

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Solution

The third proportional to 1,335 and 3,631 is: 9,875.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335 : 3,631 = 3,631 : x
  2. Step 2: Convert to fraction form
    1,335/3,631 = 3,631/x
  3. Step 3: Cross multiply
    1,335x = 3,631 × 3,631
  4. Step 4: Simplify right side
    1,335x = 13,184,161
  5. Step 5: Solve for x
    x = 13,184,161/1,335
  6. Step 6: Final answer
    x = 9,875.78

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Why These Related Problems?

These problems maintain the same ratio (2.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.