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Finding the Third Proportional to 4,403 and 5,078

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Solution

The third proportional to 4,403 and 5,078 is: 5,856.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,403 : 5,078 = 5,078 : x
  2. Step 2: Convert to fraction form
    4,403/5,078 = 5,078/x
  3. Step 3: Cross multiply
    4,403x = 5,078 × 5,078
  4. Step 4: Simplify right side
    4,403x = 25,786,084
  5. Step 5: Solve for x
    x = 25,786,084/4,403
  6. Step 6: Final answer
    x = 5,856.48

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.