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Finding the Third Proportional to 3,222.50 and 4,738.75

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Solution

The third proportional to 3,222.50 and 4,738.75 is: 6,968.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,222.50 : 4,738.75 = 4,738.75 : x
  2. Step 2: Convert to fraction form
    3,222.50/4,738.75 = 4,738.75/x
  3. Step 3: Cross multiply
    3,222.50x = 4,738.75 × 4,738.75
  4. Step 4: Simplify right side
    3,222.50x = 22,455,751.56
  5. Step 5: Solve for x
    x = 22,455,751.56/3,222.50
  6. Step 6: Final answer
    x = 6,968.43

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.