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Finding the Third Proportional to 533.88 and 828.75

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Solution

The third proportional to 533.88 and 828.75 is: 1,286.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.88 : 828.75 = 828.75 : x
  2. Step 2: Convert to fraction form
    533.88/828.75 = 828.75/x
  3. Step 3: Cross multiply
    533.88x = 828.75 × 828.75
  4. Step 4: Simplify right side
    533.88x = 686,826.56
  5. Step 5: Solve for x
    x = 686,826.56/533.88
  6. Step 6: Final answer
    x = 1,286.49

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.