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Finding the Fourth Proportional to 11,550.66, 15,945.21 and 7,571.94

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Solution

The fourth proportional to 11,550.66, 15,945.21 and 7,571.94 is: 10,452.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,550.66 : 15,945.21 = 7,571.94 : x
  2. Step 2: Convert to fraction form
    11,550.66/15,945.21 = 7,571.94/x
  3. Step 3: Cross multiply
    11,550.66x = 15,945.21 × 7,571.94
  4. Step 4: Simplify right side
    11,550.66x = 120,736,173.41
  5. Step 5: Solve for x
    x = 120,736,173.41/11,550.66
  6. Step 6: Final answer
    x = 10,452.75

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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.