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Finding the Fourth Proportional to 66,510.72, 99,783.36 and 33,229.44

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Solution

The fourth proportional to 66,510.72, 99,783.36 and 33,229.44 is: 49,852.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,510.72 : 99,783.36 = 33,229.44 : x
  2. Step 2: Convert to fraction form
    66,510.72/99,783.36 = 33,229.44/x
  3. Step 3: Cross multiply
    66,510.72x = 99,783.36 × 33,229.44
  4. Step 4: Simplify right side
    66,510.72x = 3,315,745,174.12
  5. Step 5: Solve for x
    x = 3,315,745,174.12/66,510.72
  6. Step 6: Final answer
    x = 49,852.79

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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.