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Finding the Fourth Proportional to 6,668.02, 9,201.78 and 3,683.86

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Solution

The fourth proportional to 6,668.02, 9,201.78 and 3,683.86 is: 5,083.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.02 : 9,201.78 = 3,683.86 : x
  2. Step 2: Convert to fraction form
    6,668.02/9,201.78 = 3,683.86/x
  3. Step 3: Cross multiply
    6,668.02x = 9,201.78 × 3,683.86
  4. Step 4: Simplify right side
    6,668.02x = 33,898,069.27
  5. Step 5: Solve for x
    x = 33,898,069.27/6,668.02
  6. Step 6: Final answer
    x = 5,083.68

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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.