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Finding the Fourth Proportional to 12,375.90, 18,551.70 and 11,063.70

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Solution

The fourth proportional to 12,375.90, 18,551.70 and 11,063.70 is: 16,584.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.90 : 18,551.70 = 11,063.70 : x
  2. Step 2: Convert to fraction form
    12,375.90/18,551.70 = 11,063.70/x
  3. Step 3: Cross multiply
    12,375.90x = 18,551.70 × 11,063.70
  4. Step 4: Simplify right side
    12,375.90x = 205,250,443.29
  5. Step 5: Solve for x
    x = 205,250,443.29/12,375.90
  6. Step 6: Final answer
    x = 16,584.69

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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.