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Finding the Third Proportional to 589.78 and 1,260.56

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Solution

The third proportional to 589.78 and 1,260.56 is: 2,694.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.78 : 1,260.56 = 1,260.56 : x
  2. Step 2: Convert to fraction form
    589.78/1,260.56 = 1,260.56/x
  3. Step 3: Cross multiply
    589.78x = 1,260.56 × 1,260.56
  4. Step 4: Simplify right side
    589.78x = 1,589,017.82
  5. Step 5: Solve for x
    x = 1,589,017.82/589.78
  6. Step 6: Final answer
    x = 2,694.25

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.