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Finding the Third Proportional to 1,364 and 2,980

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Solution

The third proportional to 1,364 and 2,980 is: 6,510.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364 : 2,980 = 2,980 : x
  2. Step 2: Convert to fraction form
    1,364/2,980 = 2,980/x
  3. Step 3: Cross multiply
    1,364x = 2,980 × 2,980
  4. Step 4: Simplify right side
    1,364x = 8,880,400
  5. Step 5: Solve for x
    x = 8,880,400/1,364
  6. Step 6: Final answer
    x = 6,510.56

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.