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Finding the Fourth Proportional to 6,258.55, 8,636.67 and 3,425.86

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Solution

The fourth proportional to 6,258.55, 8,636.67 and 3,425.86 is: 4,727.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,258.55 : 8,636.67 = 3,425.86 : x
  2. Step 2: Convert to fraction form
    6,258.55/8,636.67 = 3,425.86/x
  3. Step 3: Cross multiply
    6,258.55x = 8,636.67 × 3,425.86
  4. Step 4: Simplify right side
    6,258.55x = 29,587,979.10
  5. Step 5: Solve for x
    x = 29,587,979.10/6,258.55
  6. Step 6: Final answer
    x = 4,727.61

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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.