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Finding the Third Proportional to 6,161.50 and 13,639

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Solution

The third proportional to 6,161.50 and 13,639 is: 30,191.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,161.50 : 13,639 = 13,639 : x
  2. Step 2: Convert to fraction form
    6,161.50/13,639 = 13,639/x
  3. Step 3: Cross multiply
    6,161.50x = 13,639 × 13,639
  4. Step 4: Simplify right side
    6,161.50x = 186,022,321
  5. Step 5: Solve for x
    x = 186,022,321/6,161.50
  6. Step 6: Final answer
    x = 30,191.08

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.