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Finding the Third Proportional to 13,190 and 17,619

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Solution

The third proportional to 13,190 and 17,619 is: 23,535.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190 : 17,619 = 17,619 : x
  2. Step 2: Convert to fraction form
    13,190/17,619 = 17,619/x
  3. Step 3: Cross multiply
    13,190x = 17,619 × 17,619
  4. Step 4: Simplify right side
    13,190x = 310,429,161
  5. Step 5: Solve for x
    x = 310,429,161/13,190
  6. Step 6: Final answer
    x = 23,535.19

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.