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Finding the Fourth Proportional to 14,809.98, 20,439.63 and 8,524.38

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Solution

The fourth proportional to 14,809.98, 20,439.63 and 8,524.38 is: 11,764.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,809.98 : 20,439.63 = 8,524.38 : x
  2. Step 2: Convert to fraction form
    14,809.98/20,439.63 = 8,524.38/x
  3. Step 3: Cross multiply
    14,809.98x = 20,439.63 × 8,524.38
  4. Step 4: Simplify right side
    14,809.98x = 174,235,173.18
  5. Step 5: Solve for x
    x = 174,235,173.18/14,809.98
  6. Step 6: Final answer
    x = 11,764.71

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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.