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Finding the Third Proportional to 4,176 and 9,009

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Solution

The third proportional to 4,176 and 9,009 is: 19,435.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,176 : 9,009 = 9,009 : x
  2. Step 2: Convert to fraction form
    4,176/9,009 = 9,009/x
  3. Step 3: Cross multiply
    4,176x = 9,009 × 9,009
  4. Step 4: Simplify right side
    4,176x = 81,162,081
  5. Step 5: Solve for x
    x = 81,162,081/4,176
  6. Step 6: Final answer
    x = 19,435.36

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.