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Finding the Third Proportional to 18,788 and 27,622.50

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Solution

The third proportional to 18,788 and 27,622.50 is: 40,611.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788 : 27,622.50 = 27,622.50 : x
  2. Step 2: Convert to fraction form
    18,788/27,622.50 = 27,622.50/x
  3. Step 3: Cross multiply
    18,788x = 27,622.50 × 27,622.50
  4. Step 4: Simplify right side
    18,788x = 763,002,506.25
  5. Step 5: Solve for x
    x = 763,002,506.25/18,788
  6. Step 6: Final answer
    x = 40,611.16

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.