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Finding the Fourth Proportional to 8,601.76, 12,903.64 and 3,671.96

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Solution

The fourth proportional to 8,601.76, 12,903.64 and 3,671.96 is: 5,508.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.76 : 12,903.64 = 3,671.96 : x
  2. Step 2: Convert to fraction form
    8,601.76/12,903.64 = 3,671.96/x
  3. Step 3: Cross multiply
    8,601.76x = 12,903.64 × 3,671.96
  4. Step 4: Simplify right side
    8,601.76x = 47,381,649.93
  5. Step 5: Solve for x
    x = 47,381,649.93/8,601.76
  6. Step 6: Final answer
    x = 5,508.37

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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.