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Finding the Fourth Proportional to 66,427.78, 99,508.02 and 33,046.60

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Solution

The fourth proportional to 66,427.78, 99,508.02 and 33,046.60 is: 49,503.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,427.78 : 99,508.02 = 33,046.60 : x
  2. Step 2: Convert to fraction form
    66,427.78/99,508.02 = 33,046.60/x
  3. Step 3: Cross multiply
    66,427.78x = 99,508.02 × 33,046.60
  4. Step 4: Simplify right side
    66,427.78x = 3,288,401,733.73
  5. Step 5: Solve for x
    x = 3,288,401,733.73/66,427.78
  6. Step 6: Final answer
    x = 49,503.41

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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.