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Finding the Third Proportional to 2,184 and 3,009

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Solution

The third proportional to 2,184 and 3,009 is: 4,145.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184 : 3,009 = 3,009 : x
  2. Step 2: Convert to fraction form
    2,184/3,009 = 3,009/x
  3. Step 3: Cross multiply
    2,184x = 3,009 × 3,009
  4. Step 4: Simplify right side
    2,184x = 9,054,081
  5. Step 5: Solve for x
    x = 9,054,081/2,184
  6. Step 6: Final answer
    x = 4,145.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.