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Finding the Fourth Proportional to 66,429.78, 99,511.02 and 33,048.60

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Solution

The fourth proportional to 66,429.78, 99,511.02 and 33,048.60 is: 49,506.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429.78 : 99,511.02 = 33,048.60 : x
  2. Step 2: Convert to fraction form
    66,429.78/99,511.02 = 33,048.60/x
  3. Step 3: Cross multiply
    66,429.78x = 99,511.02 × 33,048.60
  4. Step 4: Simplify right side
    66,429.78x = 3,288,699,895.57
  5. Step 5: Solve for x
    x = 3,288,699,895.57/66,429.78
  6. Step 6: Final answer
    x = 49,506.41

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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.