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Finding the Fourth Proportional to 14,620.50, 20,176.50 and 8,652.02

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Solution

The fourth proportional to 14,620.50, 20,176.50 and 8,652.02 is: 11,939.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,620.50 : 20,176.50 = 8,652.02 : x
  2. Step 2: Convert to fraction form
    14,620.50/20,176.50 = 8,652.02/x
  3. Step 3: Cross multiply
    14,620.50x = 20,176.50 × 8,652.02
  4. Step 4: Simplify right side
    14,620.50x = 174,567,481.53
  5. Step 5: Solve for x
    x = 174,567,481.53/14,620.50
  6. Step 6: Final answer
    x = 11,939.91

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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.