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Finding the Third Proportional to 12,770.50 and 19,173

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Solution

The third proportional to 12,770.50 and 19,173 is: 28,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,770.50 : 19,173 = 19,173 : x
  2. Step 2: Convert to fraction form
    12,770.50/19,173 = 19,173/x
  3. Step 3: Cross multiply
    12,770.50x = 19,173 × 19,173
  4. Step 4: Simplify right side
    12,770.50x = 367,603,929
  5. Step 5: Solve for x
    x = 367,603,929/12,770.50
  6. Step 6: Final answer
    x = 28,785.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.