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Finding the Third Proportional to 17,880.75 and 34,137

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Solution

The third proportional to 17,880.75 and 34,137 is: 65,172.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,880.75 : 34,137 = 34,137 : x
  2. Step 2: Convert to fraction form
    17,880.75/34,137 = 34,137/x
  3. Step 3: Cross multiply
    17,880.75x = 34,137 × 34,137
  4. Step 4: Simplify right side
    17,880.75x = 1,165,334,769
  5. Step 5: Solve for x
    x = 1,165,334,769/17,880.75
  6. Step 6: Final answer
    x = 65,172.59

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.