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Finding the Third Proportional to 3,278 and 4,263

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Solution

The third proportional to 3,278 and 4,263 is: 5,543.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278 : 4,263 = 4,263 : x
  2. Step 2: Convert to fraction form
    3,278/4,263 = 4,263/x
  3. Step 3: Cross multiply
    3,278x = 4,263 × 4,263
  4. Step 4: Simplify right side
    3,278x = 18,173,169
  5. Step 5: Solve for x
    x = 18,173,169/3,278
  6. Step 6: Final answer
    x = 5,543.98

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.