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Finding the Fourth Proportional to 11,991.14, 16,527.93 and 8,010.80

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Solution

The fourth proportional to 11,991.14, 16,527.93 and 8,010.80 is: 11,041.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,991.14 : 16,527.93 = 8,010.80 : x
  2. Step 2: Convert to fraction form
    11,991.14/16,527.93 = 8,010.80/x
  3. Step 3: Cross multiply
    11,991.14x = 16,527.93 × 8,010.80
  4. Step 4: Simplify right side
    11,991.14x = 132,401,859.00
  5. Step 5: Solve for x
    x = 132,401,859.00/11,991.14
  6. Step 6: Final answer
    x = 11,041.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.