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Finding the Fourth Proportional to 45,906.50, 68,888.88 and 19,611.44

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Solution

The fourth proportional to 45,906.50, 68,888.88 and 19,611.44 is: 29,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,906.50 : 68,888.88 = 19,611.44 : x
  2. Step 2: Convert to fraction form
    45,906.50/68,888.88 = 19,611.44/x
  3. Step 3: Cross multiply
    45,906.50x = 68,888.88 × 19,611.44
  4. Step 4: Simplify right side
    45,906.50x = 1,351,010,112.27
  5. Step 5: Solve for x
    x = 1,351,010,112.27/45,906.50
  6. Step 6: Final answer
    x = 29,429.60

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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.