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Finding the Fourth Proportional to 9,991.44, 14,950.17 and 8,011.01

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Solution

The fourth proportional to 9,991.44, 14,950.17 and 8,011.01 is: 11,986.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,991.44 : 14,950.17 = 8,011.01 : x
  2. Step 2: Convert to fraction form
    9,991.44/14,950.17 = 8,011.01/x
  3. Step 3: Cross multiply
    9,991.44x = 14,950.17 × 8,011.01
  4. Step 4: Simplify right side
    9,991.44x = 119,765,998.75
  5. Step 5: Solve for x
    x = 119,765,998.75/9,991.44
  6. Step 6: Final answer
    x = 11,986.86

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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.