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Finding the Third Proportional to 9,385.50 and 19,923

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Solution

The third proportional to 9,385.50 and 19,923 is: 42,291.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,385.50 : 19,923 = 19,923 : x
  2. Step 2: Convert to fraction form
    9,385.50/19,923 = 19,923/x
  3. Step 3: Cross multiply
    9,385.50x = 19,923 × 19,923
  4. Step 4: Simplify right side
    9,385.50x = 396,925,929
  5. Step 5: Solve for x
    x = 396,925,929/9,385.50
  6. Step 6: Final answer
    x = 42,291.40

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.