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Finding the Third Proportional to 18,087 and 28,152

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Solution

The third proportional to 18,087 and 28,152 is: 43,817.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087 : 28,152 = 28,152 : x
  2. Step 2: Convert to fraction form
    18,087/28,152 = 28,152/x
  3. Step 3: Cross multiply
    18,087x = 28,152 × 28,152
  4. Step 4: Simplify right side
    18,087x = 792,535,104
  5. Step 5: Solve for x
    x = 792,535,104/18,087
  6. Step 6: Final answer
    x = 43,817.94

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.