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Finding the Third Proportional to 4,619.50 and 8,213

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Solution

The third proportional to 4,619.50 and 8,213 is: 14,601.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,619.50 : 8,213 = 8,213 : x
  2. Step 2: Convert to fraction form
    4,619.50/8,213 = 8,213/x
  3. Step 3: Cross multiply
    4,619.50x = 8,213 × 8,213
  4. Step 4: Simplify right side
    4,619.50x = 67,453,369
  5. Step 5: Solve for x
    x = 67,453,369/4,619.50
  6. Step 6: Final answer
    x = 14,601.88

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.