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Finding the Third Proportional to 577.75 and 1,208.50

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Solution

The third proportional to 577.75 and 1,208.50 is: 2,527.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.75 : 1,208.50 = 1,208.50 : x
  2. Step 2: Convert to fraction form
    577.75/1,208.50 = 1,208.50/x
  3. Step 3: Cross multiply
    577.75x = 1,208.50 × 1,208.50
  4. Step 4: Simplify right side
    577.75x = 1,460,472.25
  5. Step 5: Solve for x
    x = 1,460,472.25/577.75
  6. Step 6: Final answer
    x = 2,527.86

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.