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Finding the Fourth Proportional to 7,984.99, 11,975.85 and 7,589.86

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Solution

The fourth proportional to 7,984.99, 11,975.85 and 7,589.86 is: 11,383.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.99 : 11,975.85 = 7,589.86 : x
  2. Step 2: Convert to fraction form
    7,984.99/11,975.85 = 7,589.86/x
  3. Step 3: Cross multiply
    7,984.99x = 11,975.85 × 7,589.86
  4. Step 4: Simplify right side
    7,984.99x = 90,895,024.88
  5. Step 5: Solve for x
    x = 90,895,024.88/7,984.99
  6. Step 6: Final answer
    x = 11,383.24

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Double scale
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Similar ratio
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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.