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Finding the Third Proportional to 11,925 and 18,448.50

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Solution

The third proportional to 11,925 and 18,448.50 is: 28,540.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925 : 18,448.50 = 18,448.50 : x
  2. Step 2: Convert to fraction form
    11,925/18,448.50 = 18,448.50/x
  3. Step 3: Cross multiply
    11,925x = 18,448.50 × 18,448.50
  4. Step 4: Simplify right side
    11,925x = 340,347,152.25
  5. Step 5: Solve for x
    x = 340,347,152.25/11,925
  6. Step 6: Final answer
    x = 28,540.64

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.