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Finding the Third Proportional to 13,200.19 and 16,173

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Solution

The third proportional to 13,200.19 and 16,173 is: 19,815.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.19 : 16,173 = 16,173 : x
  2. Step 2: Convert to fraction form
    13,200.19/16,173 = 16,173/x
  3. Step 3: Cross multiply
    13,200.19x = 16,173 × 16,173
  4. Step 4: Simplify right side
    13,200.19x = 261,565,929
  5. Step 5: Solve for x
    x = 261,565,929/13,200.19
  6. Step 6: Final answer
    x = 19,815.32

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Why These Related Problems?

These problems maintain the same ratio (1.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.