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Finding the Fourth Proportional to 66,496.40, 99,661.44 and 33,225.80

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Solution

The fourth proportional to 66,496.40, 99,661.44 and 33,225.80 is: 49,797.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,496.40 : 99,661.44 = 33,225.80 : x
  2. Step 2: Convert to fraction form
    66,496.40/99,661.44 = 33,225.80/x
  3. Step 3: Cross multiply
    66,496.40x = 99,661.44 × 33,225.80
  4. Step 4: Simplify right side
    66,496.40x = 3,311,331,073.15
  5. Step 5: Solve for x
    x = 3,311,331,073.15/66,496.40
  6. Step 6: Final answer
    x = 49,797.15

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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.