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Finding the Fourth Proportional to 8,596.44, 12,889.80 and 4,215.96

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Solution

The fourth proportional to 8,596.44, 12,889.80 and 4,215.96 is: 6,321.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,596.44 : 12,889.80 = 4,215.96 : x
  2. Step 2: Convert to fraction form
    8,596.44/12,889.80 = 4,215.96/x
  3. Step 3: Cross multiply
    8,596.44x = 12,889.80 × 4,215.96
  4. Step 4: Simplify right side
    8,596.44x = 54,342,881.21
  5. Step 5: Solve for x
    x = 54,342,881.21/8,596.44
  6. Step 6: Final answer
    x = 6,321.56

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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.