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Finding the Fourth Proportional to 8,551.45, 12,819.57 and 4,604.86

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Solution

The fourth proportional to 8,551.45, 12,819.57 and 4,604.86 is: 6,903.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551.45 : 12,819.57 = 4,604.86 : x
  2. Step 2: Convert to fraction form
    8,551.45/12,819.57 = 4,604.86/x
  3. Step 3: Cross multiply
    8,551.45x = 12,819.57 × 4,604.86
  4. Step 4: Simplify right side
    8,551.45x = 59,032,325.11
  5. Step 5: Solve for x
    x = 59,032,325.11/8,551.45
  6. Step 6: Final answer
    x = 6,903.19

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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.