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Finding the Fourth Proportional to 3,615.57, 5,423.72 and 1,668.33

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Solution

The fourth proportional to 3,615.57, 5,423.72 and 1,668.33 is: 2,502.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.57 : 5,423.72 = 1,668.33 : x
  2. Step 2: Convert to fraction form
    3,615.57/5,423.72 = 1,668.33/x
  3. Step 3: Cross multiply
    3,615.57x = 5,423.72 × 1,668.33
  4. Step 4: Simplify right side
    3,615.57x = 9,048,546.45
  5. Step 5: Solve for x
    x = 9,048,546.45/3,615.57
  6. Step 6: Final answer
    x = 2,502.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.