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Finding the Third Proportional to 5,961 and 12,979.50

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Solution

The third proportional to 5,961 and 12,979.50 is: 28,261.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,961 : 12,979.50 = 12,979.50 : x
  2. Step 2: Convert to fraction form
    5,961/12,979.50 = 12,979.50/x
  3. Step 3: Cross multiply
    5,961x = 12,979.50 × 12,979.50
  4. Step 4: Simplify right side
    5,961x = 168,467,420.25
  5. Step 5: Solve for x
    x = 168,467,420.25/5,961
  6. Step 6: Final answer
    x = 28,261.60

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.