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Finding the Fourth Proportional to 3,322.99, 4,984.35 and 1,131.67

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Solution

The fourth proportional to 3,322.99, 4,984.35 and 1,131.67 is: 1,697.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,322.99 : 4,984.35 = 1,131.67 : x
  2. Step 2: Convert to fraction form
    3,322.99/4,984.35 = 1,131.67/x
  3. Step 3: Cross multiply
    3,322.99x = 4,984.35 × 1,131.67
  4. Step 4: Simplify right side
    3,322.99x = 5,640,639.36
  5. Step 5: Solve for x
    x = 5,640,639.36/3,322.99
  6. Step 6: Final answer
    x = 1,697.46

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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.