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Finding the Fourth Proportional to 12,476.10, 18,704.79 and 7,544.73

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Solution

The fourth proportional to 12,476.10, 18,704.79 and 7,544.73 is: 11,311.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476.10 : 18,704.79 = 7,544.73 : x
  2. Step 2: Convert to fraction form
    12,476.10/18,704.79 = 7,544.73/x
  3. Step 3: Cross multiply
    12,476.10x = 18,704.79 × 7,544.73
  4. Step 4: Simplify right side
    12,476.10x = 141,122,590.26
  5. Step 5: Solve for x
    x = 141,122,590.26/12,476.10
  6. Step 6: Final answer
    x = 11,311.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.