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Finding the Third Proportional to 12,224.50 and 18,898

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Solution

The third proportional to 12,224.50 and 18,898 is: 29,214.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,224.50 : 18,898 = 18,898 : x
  2. Step 2: Convert to fraction form
    12,224.50/18,898 = 18,898/x
  3. Step 3: Cross multiply
    12,224.50x = 18,898 × 18,898
  4. Step 4: Simplify right side
    12,224.50x = 357,134,404
  5. Step 5: Solve for x
    x = 357,134,404/12,224.50
  6. Step 6: Final answer
    x = 29,214.64

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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.