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Finding the Third Proportional to 19,120 and 41,009

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Solution

The third proportional to 19,120 and 41,009 is: 87,957.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120 : 41,009 = 41,009 : x
  2. Step 2: Convert to fraction form
    19,120/41,009 = 41,009/x
  3. Step 3: Cross multiply
    19,120x = 41,009 × 41,009
  4. Step 4: Simplify right side
    19,120x = 1,681,738,081
  5. Step 5: Solve for x
    x = 1,681,738,081/19,120
  6. Step 6: Final answer
    x = 87,957.01

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.