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Finding the Third Proportional to 3,300 and 4,830

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Solution

The third proportional to 3,300 and 4,830 is: 7,069.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,300 : 4,830 = 4,830 : x
  2. Step 2: Convert to fraction form
    3,300/4,830 = 4,830/x
  3. Step 3: Cross multiply
    3,300x = 4,830 × 4,830
  4. Step 4: Simplify right side
    3,300x = 23,328,900
  5. Step 5: Solve for x
    x = 23,328,900/3,300
  6. Step 6: Final answer
    x = 7,069.36

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.