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Finding the Fourth Proportional to 14,863.66, 20,511.85 and 8,576.03

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Solution

The fourth proportional to 14,863.66, 20,511.85 and 8,576.03 is: 11,834.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,863.66 : 20,511.85 = 8,576.03 : x
  2. Step 2: Convert to fraction form
    14,863.66/20,511.85 = 8,576.03/x
  3. Step 3: Cross multiply
    14,863.66x = 20,511.85 × 8,576.03
  4. Step 4: Simplify right side
    14,863.66x = 175,910,240.96
  5. Step 5: Solve for x
    x = 175,910,240.96/14,863.66
  6. Step 6: Final answer
    x = 11,834.92

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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.