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Finding the Fourth Proportional to 8,514.67, 11,750.48 and 4,789.55

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Solution

The fourth proportional to 8,514.67, 11,750.48 and 4,789.55 is: 6,609.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,514.67 : 11,750.48 = 4,789.55 : x
  2. Step 2: Convert to fraction form
    8,514.67/11,750.48 = 4,789.55/x
  3. Step 3: Cross multiply
    8,514.67x = 11,750.48 × 4,789.55
  4. Step 4: Simplify right side
    8,514.67x = 56,279,487.54
  5. Step 5: Solve for x
    x = 56,279,487.54/8,514.67
  6. Step 6: Final answer
    x = 6,609.71

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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.