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Finding the Third Proportional to 9,129 and 19,833

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Solution

The third proportional to 9,129 and 19,833 is: 43,087.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129 : 19,833 = 19,833 : x
  2. Step 2: Convert to fraction form
    9,129/19,833 = 19,833/x
  3. Step 3: Cross multiply
    9,129x = 19,833 × 19,833
  4. Step 4: Simplify right side
    9,129x = 393,347,889
  5. Step 5: Solve for x
    x = 393,347,889/9,129
  6. Step 6: Final answer
    x = 43,087.73

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.