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Finding the Third Proportional to 1,323.75 and 2,856.75

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Solution

The third proportional to 1,323.75 and 2,856.75 is: 6,165.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.75 : 2,856.75 = 2,856.75 : x
  2. Step 2: Convert to fraction form
    1,323.75/2,856.75 = 2,856.75/x
  3. Step 3: Cross multiply
    1,323.75x = 2,856.75 × 2,856.75
  4. Step 4: Simplify right side
    1,323.75x = 8,161,020.56
  5. Step 5: Solve for x
    x = 8,161,020.56/1,323.75
  6. Step 6: Final answer
    x = 6,165.08

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.