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Finding the Third Proportional to 4,767.50 and 6,878

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Solution

The third proportional to 4,767.50 and 6,878 is: 9,922.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,767.50 : 6,878 = 6,878 : x
  2. Step 2: Convert to fraction form
    4,767.50/6,878 = 6,878/x
  3. Step 3: Cross multiply
    4,767.50x = 6,878 × 6,878
  4. Step 4: Simplify right side
    4,767.50x = 47,306,884
  5. Step 5: Solve for x
    x = 47,306,884/4,767.50
  6. Step 6: Final answer
    x = 9,922.79

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.