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Finding the Fourth Proportional to 66,475.72, 99,630.42 and 33,205.07

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Solution

The fourth proportional to 66,475.72, 99,630.42 and 33,205.07 is: 49,766.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,475.72 : 99,630.42 = 33,205.07 : x
  2. Step 2: Convert to fraction form
    66,475.72/99,630.42 = 33,205.07/x
  3. Step 3: Cross multiply
    66,475.72x = 99,630.42 × 33,205.07
  4. Step 4: Simplify right side
    66,475.72x = 3,308,234,406.05
  5. Step 5: Solve for x
    x = 3,308,234,406.05/66,475.72
  6. Step 6: Final answer
    x = 49,766.06

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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.