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Finding the Third Proportional to 5,278 and 5,764

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Solution

The third proportional to 5,278 and 5,764 is: 6,294.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278 : 5,764 = 5,764 : x
  2. Step 2: Convert to fraction form
    5,278/5,764 = 5,764/x
  3. Step 3: Cross multiply
    5,278x = 5,764 × 5,764
  4. Step 4: Simplify right side
    5,278x = 33,223,696
  5. Step 5: Solve for x
    x = 33,223,696/5,278
  6. Step 6: Final answer
    x = 6,294.75

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.