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Finding the Fourth Proportional to 14,863.88, 20,512.16 and 8,896.41

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Solution

The fourth proportional to 14,863.88, 20,512.16 and 8,896.41 is: 12,277.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,863.88 : 20,512.16 = 8,896.41 : x
  2. Step 2: Convert to fraction form
    14,863.88/20,512.16 = 8,896.41/x
  3. Step 3: Cross multiply
    14,863.88x = 20,512.16 × 8,896.41
  4. Step 4: Simplify right side
    14,863.88x = 182,484,540.86
  5. Step 5: Solve for x
    x = 182,484,540.86/14,863.88
  6. Step 6: Final answer
    x = 12,277.05

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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.