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Finding the Fourth Proportional to 8,777.16, 13,169.34 and 3,583.56

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Solution

The fourth proportional to 8,777.16, 13,169.34 and 3,583.56 is: 5,376.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.16 : 13,169.34 = 3,583.56 : x
  2. Step 2: Convert to fraction form
    8,777.16/13,169.34 = 3,583.56/x
  3. Step 3: Cross multiply
    8,777.16x = 13,169.34 × 3,583.56
  4. Step 4: Simplify right side
    8,777.16x = 47,193,120.05
  5. Step 5: Solve for x
    x = 47,193,120.05/8,777.16
  6. Step 6: Final answer
    x = 5,376.81

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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.