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Finding the Third Proportional to 16,441.50 and 19,221

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Solution

The third proportional to 16,441.50 and 19,221 is: 22,470.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,441.50 : 19,221 = 19,221 : x
  2. Step 2: Convert to fraction form
    16,441.50/19,221 = 19,221/x
  3. Step 3: Cross multiply
    16,441.50x = 19,221 × 19,221
  4. Step 4: Simplify right side
    16,441.50x = 369,446,841
  5. Step 5: Solve for x
    x = 369,446,841/16,441.50
  6. Step 6: Final answer
    x = 22,470.39

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Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.