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Finding the Third Proportional to 4,378 and 9,250

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Solution

The third proportional to 4,378 and 9,250 is: 19,543.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378 : 9,250 = 9,250 : x
  2. Step 2: Convert to fraction form
    4,378/9,250 = 9,250/x
  3. Step 3: Cross multiply
    4,378x = 9,250 × 9,250
  4. Step 4: Simplify right side
    4,378x = 85,562,500
  5. Step 5: Solve for x
    x = 85,562,500/4,378
  6. Step 6: Final answer
    x = 19,543.74

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.