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Finding the Fourth Proportional to 8,879.37, 12,253.94 and 5,103.77

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Solution

The fourth proportional to 8,879.37, 12,253.94 and 5,103.77 is: 7,043.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.37 : 12,253.94 = 5,103.77 : x
  2. Step 2: Convert to fraction form
    8,879.37/12,253.94 = 5,103.77/x
  3. Step 3: Cross multiply
    8,879.37x = 12,253.94 × 5,103.77
  4. Step 4: Simplify right side
    8,879.37x = 62,541,204.57
  5. Step 5: Solve for x
    x = 62,541,204.57/8,879.37
  6. Step 6: Final answer
    x = 7,043.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.