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Finding the Third Proportional to 3,033 and 3,120

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Solution

The third proportional to 3,033 and 3,120 is: 3,209.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,033 : 3,120 = 3,120 : x
  2. Step 2: Convert to fraction form
    3,033/3,120 = 3,120/x
  3. Step 3: Cross multiply
    3,033x = 3,120 × 3,120
  4. Step 4: Simplify right side
    3,033x = 9,734,400
  5. Step 5: Solve for x
    x = 9,734,400/3,033
  6. Step 6: Final answer
    x = 3,209.50

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Why These Related Problems?

These problems maintain the same ratio (1.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.