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Finding the Fourth Proportional to 12,570.75, 18,864.07 and 7,027.73

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Solution

The fourth proportional to 12,570.75, 18,864.07 and 7,027.73 is: 10,546.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.75 : 18,864.07 = 7,027.73 : x
  2. Step 2: Convert to fraction form
    12,570.75/18,864.07 = 7,027.73/x
  3. Step 3: Cross multiply
    12,570.75x = 18,864.07 × 7,027.73
  4. Step 4: Simplify right side
    12,570.75x = 132,571,590.66
  5. Step 5: Solve for x
    x = 132,571,590.66/12,570.75
  6. Step 6: Final answer
    x = 10,546.04

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1.5x scale

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.