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Finding the Fourth Proportional to 14,983.12, 20,676.01 and 8,605.22

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Solution

The fourth proportional to 14,983.12, 20,676.01 and 8,605.22 is: 11,874.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,983.12 : 20,676.01 = 8,605.22 : x
  2. Step 2: Convert to fraction form
    14,983.12/20,676.01 = 8,605.22/x
  3. Step 3: Cross multiply
    14,983.12x = 20,676.01 × 8,605.22
  4. Step 4: Simplify right side
    14,983.12x = 177,921,644.95
  5. Step 5: Solve for x
    x = 177,921,644.95/14,983.12
  6. Step 6: Final answer
    x = 11,874.81

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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.