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Finding the Third Proportional to 4,976 and 11,960

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Solution

The third proportional to 4,976 and 11,960 is: 28,746.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,976 : 11,960 = 11,960 : x
  2. Step 2: Convert to fraction form
    4,976/11,960 = 11,960/x
  3. Step 3: Cross multiply
    4,976x = 11,960 × 11,960
  4. Step 4: Simplify right side
    4,976x = 143,041,600
  5. Step 5: Solve for x
    x = 143,041,600/4,976
  6. Step 6: Final answer
    x = 28,746.30

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Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.