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Finding the Fourth Proportional to 8,575.56, 12,843.18 and 4,179.24

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Solution

The fourth proportional to 8,575.56, 12,843.18 and 4,179.24 is: 6,259.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,575.56 : 12,843.18 = 4,179.24 : x
  2. Step 2: Convert to fraction form
    8,575.56/12,843.18 = 4,179.24/x
  3. Step 3: Cross multiply
    8,575.56x = 12,843.18 × 4,179.24
  4. Step 4: Simplify right side
    8,575.56x = 53,674,731.58
  5. Step 5: Solve for x
    x = 53,674,731.58/8,575.56
  6. Step 6: Final answer
    x = 6,259.04

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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.