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Finding the Fourth Proportional to 14,903.88, 20,576.39 and 9,872.42

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Solution

The fourth proportional to 14,903.88, 20,576.39 and 9,872.42 is: 13,629.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,903.88 : 20,576.39 = 9,872.42 : x
  2. Step 2: Convert to fraction form
    14,903.88/20,576.39 = 9,872.42/x
  3. Step 3: Cross multiply
    14,903.88x = 20,576.39 × 9,872.42
  4. Step 4: Simplify right side
    14,903.88x = 203,138,611.92
  5. Step 5: Solve for x
    x = 203,138,611.92/14,903.88
  6. Step 6: Final answer
    x = 13,629.91

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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.