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Finding the Third Proportional to 8,325.28 and 18,119.53

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Solution

The third proportional to 8,325.28 and 18,119.53 is: 39,436.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,325.28 : 18,119.53 = 18,119.53 : x
  2. Step 2: Convert to fraction form
    8,325.28/18,119.53 = 18,119.53/x
  3. Step 3: Cross multiply
    8,325.28x = 18,119.53 × 18,119.53
  4. Step 4: Simplify right side
    8,325.28x = 328,317,412.72
  5. Step 5: Solve for x
    x = 328,317,412.72/8,325.28
  6. Step 6: Final answer
    x = 39,436.19

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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.