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Finding the Third Proportional to 6,219.28 and 9,328.92

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Solution

The third proportional to 6,219.28 and 9,328.92 is: 13,993.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,219.28 : 9,328.92 = 9,328.92 : x
  2. Step 2: Convert to fraction form
    6,219.28/9,328.92 = 9,328.92/x
  3. Step 3: Cross multiply
    6,219.28x = 9,328.92 × 9,328.92
  4. Step 4: Simplify right side
    6,219.28x = 87,028,783.35
  5. Step 5: Solve for x
    x = 87,028,783.35/6,219.28
  6. Step 6: Final answer
    x = 13,993.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.