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Finding the Fourth Proportional to 11,790.16, 17,687.52 and 3,999.52

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Solution

The fourth proportional to 11,790.16, 17,687.52 and 3,999.52 is: 6,000.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,790.16 : 17,687.52 = 3,999.52 : x
  2. Step 2: Convert to fraction form
    11,790.16/17,687.52 = 3,999.52/x
  3. Step 3: Cross multiply
    11,790.16x = 17,687.52 × 3,999.52
  4. Step 4: Simplify right side
    11,790.16x = 70,741,589.99
  5. Step 5: Solve for x
    x = 70,741,589.99/11,790.16
  6. Step 6: Final answer
    x = 6,000.05

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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.