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Finding the Fourth Proportional to 8,514.64, 12,777.06 and 3,583.96

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Solution

The fourth proportional to 8,514.64, 12,777.06 and 3,583.96 is: 5,378.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,514.64 : 12,777.06 = 3,583.96 : x
  2. Step 2: Convert to fraction form
    8,514.64/12,777.06 = 3,583.96/x
  3. Step 3: Cross multiply
    8,514.64x = 12,777.06 × 3,583.96
  4. Step 4: Simplify right side
    8,514.64x = 45,792,471.96
  5. Step 5: Solve for x
    x = 45,792,471.96/8,514.64
  6. Step 6: Final answer
    x = 5,378.09

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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.