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Finding the Fourth Proportional to 8,575.86, 12,863.79 and 3,029.24

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Solution

The fourth proportional to 8,575.86, 12,863.79 and 3,029.24 is: 4,543.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,575.86 : 12,863.79 = 3,029.24 : x
  2. Step 2: Convert to fraction form
    8,575.86/12,863.79 = 3,029.24/x
  3. Step 3: Cross multiply
    8,575.86x = 12,863.79 × 3,029.24
  4. Step 4: Simplify right side
    8,575.86x = 38,967,507.22
  5. Step 5: Solve for x
    x = 38,967,507.22/8,575.86
  6. Step 6: Final answer
    x = 4,543.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.