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Finding the Fourth Proportional to 6,516.59, 8,992.96 and 3,963.60

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Solution

The fourth proportional to 6,516.59, 8,992.96 and 3,963.60 is: 5,469.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.59 : 8,992.96 = 3,963.60 : x
  2. Step 2: Convert to fraction form
    6,516.59/8,992.96 = 3,963.60/x
  3. Step 3: Cross multiply
    6,516.59x = 8,992.96 × 3,963.60
  4. Step 4: Simplify right side
    6,516.59x = 35,644,486.35
  5. Step 5: Solve for x
    x = 35,644,486.35/6,516.59
  6. Step 6: Final answer
    x = 5,469.81

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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.