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Finding the Third Proportional to 5,389.03 and 11,727.28

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Solution

The third proportional to 5,389.03 and 11,727.28 is: 25,520.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.03 : 11,727.28 = 11,727.28 : x
  2. Step 2: Convert to fraction form
    5,389.03/11,727.28 = 11,727.28/x
  3. Step 3: Cross multiply
    5,389.03x = 11,727.28 × 11,727.28
  4. Step 4: Simplify right side
    5,389.03x = 137,529,125.52
  5. Step 5: Solve for x
    x = 137,529,125.52/5,389.03
  6. Step 6: Final answer
    x = 25,520.19

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.