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Finding the Fourth Proportional to 4,406.99, 6,611.43 and 1,485.25

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Solution

The fourth proportional to 4,406.99, 6,611.43 and 1,485.25 is: 2,228.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,406.99 : 6,611.43 = 1,485.25 : x
  2. Step 2: Convert to fraction form
    4,406.99/6,611.43 = 1,485.25/x
  3. Step 3: Cross multiply
    4,406.99x = 6,611.43 × 1,485.25
  4. Step 4: Simplify right side
    4,406.99x = 9,819,626.41
  5. Step 5: Solve for x
    x = 9,819,626.41/4,406.99
  6. Step 6: Final answer
    x = 2,228.19

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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.