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Finding the Fourth Proportional to 6,668.60, 9,993.64 and 2,504.40

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Solution

The fourth proportional to 6,668.60, 9,993.64 and 2,504.40 is: 3,753.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.60 : 9,993.64 = 2,504.40 : x
  2. Step 2: Convert to fraction form
    6,668.60/9,993.64 = 2,504.40/x
  3. Step 3: Cross multiply
    6,668.60x = 9,993.64 × 2,504.40
  4. Step 4: Simplify right side
    6,668.60x = 25,028,072.02
  5. Step 5: Solve for x
    x = 25,028,072.02/6,668.60
  6. Step 6: Final answer
    x = 3,753.12

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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.