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Finding the Third Proportional to 533.50 and 1,270

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Solution

The third proportional to 533.50 and 1,270 is: 3,023.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.50 : 1,270 = 1,270 : x
  2. Step 2: Convert to fraction form
    533.50/1,270 = 1,270/x
  3. Step 3: Cross multiply
    533.50x = 1,270 × 1,270
  4. Step 4: Simplify right side
    533.50x = 1,612,900
  5. Step 5: Solve for x
    x = 1,612,900/533.50
  6. Step 6: Final answer
    x = 3,023.24

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Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.