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Finding the Fourth Proportional to 19,074.65, 28,611.99 and 7,975.26

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Solution

The fourth proportional to 19,074.65, 28,611.99 and 7,975.26 is: 11,962.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,074.65 : 28,611.99 = 7,975.26 : x
  2. Step 2: Convert to fraction form
    19,074.65/28,611.99 = 7,975.26/x
  3. Step 3: Cross multiply
    19,074.65x = 28,611.99 × 7,975.26
  4. Step 4: Simplify right side
    19,074.65x = 228,188,059.37
  5. Step 5: Solve for x
    x = 228,188,059.37/19,074.65
  6. Step 6: Final answer
    x = 11,962.90

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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.