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Finding the Third Proportional to 483.75 and 1,257.75

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Solution

The third proportional to 483.75 and 1,257.75 is: 3,270.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.75 : 1,257.75 = 1,257.75 : x
  2. Step 2: Convert to fraction form
    483.75/1,257.75 = 1,257.75/x
  3. Step 3: Cross multiply
    483.75x = 1,257.75 × 1,257.75
  4. Step 4: Simplify right side
    483.75x = 1,581,935.06
  5. Step 5: Solve for x
    x = 1,581,935.06/483.75
  6. Step 6: Final answer
    x = 3,270.15

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.