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Finding the Third Proportional to 4,395.38 and 9,484.31

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Solution

The third proportional to 4,395.38 and 9,484.31 is: 20,465.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,395.38 : 9,484.31 = 9,484.31 : x
  2. Step 2: Convert to fraction form
    4,395.38/9,484.31 = 9,484.31/x
  3. Step 3: Cross multiply
    4,395.38x = 9,484.31 × 9,484.31
  4. Step 4: Simplify right side
    4,395.38x = 89,952,183.60
  5. Step 5: Solve for x
    x = 89,952,183.60/4,395.38
  6. Step 6: Final answer
    x = 20,465.19

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.