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Finding the Fourth Proportional to 8,339.50, 11,508.87 and 4,613.50

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Solution

The fourth proportional to 8,339.50, 11,508.87 and 4,613.50 is: 6,366.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.50 : 11,508.87 = 4,613.50 : x
  2. Step 2: Convert to fraction form
    8,339.50/11,508.87 = 4,613.50/x
  3. Step 3: Cross multiply
    8,339.50x = 11,508.87 × 4,613.50
  4. Step 4: Simplify right side
    8,339.50x = 53,096,171.75
  5. Step 5: Solve for x
    x = 53,096,171.75/8,339.50
  6. Step 6: Final answer
    x = 6,366.83

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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.