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Finding the Fourth Proportional to 8,573.80, 12,860.99 and 2,951.41

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Solution

The fourth proportional to 8,573.80, 12,860.99 and 2,951.41 is: 4,427.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,573.80 : 12,860.99 = 2,951.41 : x
  2. Step 2: Convert to fraction form
    8,573.80/12,860.99 = 2,951.41/x
  3. Step 3: Cross multiply
    8,573.80x = 12,860.99 × 2,951.41
  4. Step 4: Simplify right side
    8,573.80x = 37,958,054.50
  5. Step 5: Solve for x
    x = 37,958,054.50/8,573.80
  6. Step 6: Final answer
    x = 4,427.21

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Similar ratio
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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.