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Finding the Fourth Proportional to 19,063.50, 28,599.57 and 6,751.50

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Solution

The fourth proportional to 19,063.50, 28,599.57 and 6,751.50 is: 10,128.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,063.50 : 28,599.57 = 6,751.50 : x
  2. Step 2: Convert to fraction form
    19,063.50/28,599.57 = 6,751.50/x
  3. Step 3: Cross multiply
    19,063.50x = 28,599.57 × 6,751.50
  4. Step 4: Simplify right side
    19,063.50x = 193,089,996.86
  5. Step 5: Solve for x
    x = 193,089,996.86/19,063.50
  6. Step 6: Final answer
    x = 10,128.78

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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.