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Finding the Third Proportional to 9,420.05 and 10,297.13

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Solution

The third proportional to 9,420.05 and 10,297.13 is: 11,255.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.05 : 10,297.13 = 10,297.13 : x
  2. Step 2: Convert to fraction form
    9,420.05/10,297.13 = 10,297.13/x
  3. Step 3: Cross multiply
    9,420.05x = 10,297.13 × 10,297.13
  4. Step 4: Simplify right side
    9,420.05x = 106,030,783.27
  5. Step 5: Solve for x
    x = 106,030,783.27/9,420.05
  6. Step 6: Final answer
    x = 11,255.87

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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.