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Finding the Third Proportional to 6,121.50 and 13,261

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Solution

The third proportional to 6,121.50 and 13,261 is: 28,727.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.50 : 13,261 = 13,261 : x
  2. Step 2: Convert to fraction form
    6,121.50/13,261 = 13,261/x
  3. Step 3: Cross multiply
    6,121.50x = 13,261 × 13,261
  4. Step 4: Simplify right side
    6,121.50x = 175,854,121
  5. Step 5: Solve for x
    x = 175,854,121/6,121.50
  6. Step 6: Final answer
    x = 28,727.29

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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.