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Finding the Third Proportional to 18,563 and 28,005

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Solution

The third proportional to 18,563 and 28,005 is: 42,249.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,563 : 28,005 = 28,005 : x
  2. Step 2: Convert to fraction form
    18,563/28,005 = 28,005/x
  3. Step 3: Cross multiply
    18,563x = 28,005 × 28,005
  4. Step 4: Simplify right side
    18,563x = 784,280,025
  5. Step 5: Solve for x
    x = 784,280,025/18,563
  6. Step 6: Final answer
    x = 42,249.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.