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Finding the Fourth Proportional to 14,867.82, 20,512.50 and 8,489.82

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Solution

The fourth proportional to 14,867.82, 20,512.50 and 8,489.82 is: 11,713.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,867.82 : 20,512.50 = 8,489.82 : x
  2. Step 2: Convert to fraction form
    14,867.82/20,512.50 = 8,489.82/x
  3. Step 3: Cross multiply
    14,867.82x = 20,512.50 × 8,489.82
  4. Step 4: Simplify right side
    14,867.82x = 174,147,432.75
  5. Step 5: Solve for x
    x = 174,147,432.75/14,867.82
  6. Step 6: Final answer
    x = 11,713.04

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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.