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Finding the Fourth Proportional to 65,850.98, 98,751.63 and 21,467.30

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Solution

The fourth proportional to 65,850.98, 98,751.63 and 21,467.30 is: 32,192.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,850.98 : 98,751.63 = 21,467.30 : x
  2. Step 2: Convert to fraction form
    65,850.98/98,751.63 = 21,467.30/x
  3. Step 3: Cross multiply
    65,850.98x = 98,751.63 × 21,467.30
  4. Step 4: Simplify right side
    65,850.98x = 2,119,930,866.70
  5. Step 5: Solve for x
    x = 2,119,930,866.70/65,850.98
  6. Step 6: Final answer
    x = 32,192.85

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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.