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Finding the Fourth Proportional to 9,667.90, 14,489.70 and 7,067.80

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Solution

The fourth proportional to 9,667.90, 14,489.70 and 7,067.80 is: 10,592.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,667.90 : 14,489.70 = 7,067.80 : x
  2. Step 2: Convert to fraction form
    9,667.90/14,489.70 = 7,067.80/x
  3. Step 3: Cross multiply
    9,667.90x = 14,489.70 × 7,067.80
  4. Step 4: Simplify right side
    9,667.90x = 102,410,301.66
  5. Step 5: Solve for x
    x = 102,410,301.66/9,667.90
  6. Step 6: Final answer
    x = 10,592.82

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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.