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Finding the Third Proportional to 571.50 and 1,371.75

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Solution

The third proportional to 571.50 and 1,371.75 is: 3,292.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.50 : 1,371.75 = 1,371.75 : x
  2. Step 2: Convert to fraction form
    571.50/1,371.75 = 1,371.75/x
  3. Step 3: Cross multiply
    571.50x = 1,371.75 × 1,371.75
  4. Step 4: Simplify right side
    571.50x = 1,881,698.06
  5. Step 5: Solve for x
    x = 1,881,698.06/571.50
  6. Step 6: Final answer
    x = 3,292.56

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Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.