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Finding the Fourth Proportional to 8,671.02, 13,007.86 and 2,826.26

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Solution

The fourth proportional to 8,671.02, 13,007.86 and 2,826.26 is: 4,239.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.02 : 13,007.86 = 2,826.26 : x
  2. Step 2: Convert to fraction form
    8,671.02/13,007.86 = 2,826.26/x
  3. Step 3: Cross multiply
    8,671.02x = 13,007.86 × 2,826.26
  4. Step 4: Simplify right side
    8,671.02x = 36,763,594.40
  5. Step 5: Solve for x
    x = 36,763,594.40/8,671.02
  6. Step 6: Final answer
    x = 4,239.82

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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.