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Finding the Fourth Proportional to 66,472.14, 99,675.80 and 22,083.60

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Solution

The fourth proportional to 66,472.14, 99,675.80 and 22,083.60 is: 33,114.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472.14 : 99,675.80 = 22,083.60 : x
  2. Step 2: Convert to fraction form
    66,472.14/99,675.80 = 22,083.60/x
  3. Step 3: Cross multiply
    66,472.14x = 99,675.80 × 22,083.60
  4. Step 4: Simplify right side
    66,472.14x = 2,201,200,496.88
  5. Step 5: Solve for x
    x = 2,201,200,496.88/66,472.14
  6. Step 6: Final answer
    x = 33,114.63

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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.