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Finding the Fourth Proportional to 19,205.46, 28,817.46 and 8,682.96

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Solution

The fourth proportional to 19,205.46, 28,817.46 and 8,682.96 is: 13,028.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,205.46 : 28,817.46 = 8,682.96 : x
  2. Step 2: Convert to fraction form
    19,205.46/28,817.46 = 8,682.96/x
  3. Step 3: Cross multiply
    19,205.46x = 28,817.46 × 8,682.96
  4. Step 4: Simplify right side
    19,205.46x = 250,220,852.48
  5. Step 5: Solve for x
    x = 250,220,852.48/19,205.46
  6. Step 6: Final answer
    x = 13,028.63

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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.