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Finding the Third Proportional to 9,182.75 and 19,921

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Solution

The third proportional to 9,182.75 and 19,921 is: 43,216.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,182.75 : 19,921 = 19,921 : x
  2. Step 2: Convert to fraction form
    9,182.75/19,921 = 19,921/x
  3. Step 3: Cross multiply
    9,182.75x = 19,921 × 19,921
  4. Step 4: Simplify right side
    9,182.75x = 396,846,241
  5. Step 5: Solve for x
    x = 396,846,241/9,182.75
  6. Step 6: Final answer
    x = 43,216.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.