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Finding the Fourth Proportional to 14,964.89, 20,651.29 and 8,250.49

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Solution

The fourth proportional to 14,964.89, 20,651.29 and 8,250.49 is: 11,385.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,964.89 : 20,651.29 = 8,250.49 : x
  2. Step 2: Convert to fraction form
    14,964.89/20,651.29 = 8,250.49/x
  3. Step 3: Cross multiply
    14,964.89x = 20,651.29 × 8,250.49
  4. Step 4: Simplify right side
    14,964.89x = 170,383,266.82
  5. Step 5: Solve for x
    x = 170,383,266.82/14,964.89
  6. Step 6: Final answer
    x = 11,385.54

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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.