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Finding the Fourth Proportional to 8,548.56, 12,811.91 and 5,037.21

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Solution

The fourth proportional to 8,548.56, 12,811.91 and 5,037.21 is: 7,549.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,548.56 : 12,811.91 = 5,037.21 : x
  2. Step 2: Convert to fraction form
    8,548.56/12,811.91 = 5,037.21/x
  3. Step 3: Cross multiply
    8,548.56x = 12,811.91 × 5,037.21
  4. Step 4: Simplify right side
    8,548.56x = 64,536,255.99
  5. Step 5: Solve for x
    x = 64,536,255.99/8,548.56
  6. Step 6: Final answer
    x = 7,549.37

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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.