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Finding the Third Proportional to 2,319 and 3,168

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Solution

The third proportional to 2,319 and 3,168 is: 4,327.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319 : 3,168 = 3,168 : x
  2. Step 2: Convert to fraction form
    2,319/3,168 = 3,168/x
  3. Step 3: Cross multiply
    2,319x = 3,168 × 3,168
  4. Step 4: Simplify right side
    2,319x = 10,036,224
  5. Step 5: Solve for x
    x = 10,036,224/2,319
  6. Step 6: Final answer
    x = 4,327.82

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.