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Finding the Third Proportional to 3,300 and 5,449.50

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Solution

The third proportional to 3,300 and 5,449.50 is: 8,999.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,300 : 5,449.50 = 5,449.50 : x
  2. Step 2: Convert to fraction form
    3,300/5,449.50 = 5,449.50/x
  3. Step 3: Cross multiply
    3,300x = 5,449.50 × 5,449.50
  4. Step 4: Simplify right side
    3,300x = 29,697,050.25
  5. Step 5: Solve for x
    x = 29,697,050.25/3,300
  6. Step 6: Final answer
    x = 8,999.11

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.