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Finding the Fourth Proportional to 66,480.90, 99,636.03 and 29,030.82

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Solution

The fourth proportional to 66,480.90, 99,636.03 and 29,030.82 is: 43,508.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,480.90 : 99,636.03 = 29,030.82 : x
  2. Step 2: Convert to fraction form
    66,480.90/99,636.03 = 29,030.82/x
  3. Step 3: Cross multiply
    66,480.90x = 99,636.03 × 29,030.82
  4. Step 4: Simplify right side
    66,480.90x = 2,892,515,652.44
  5. Step 5: Solve for x
    x = 2,892,515,652.44/66,480.90
  6. Step 6: Final answer
    x = 43,508.97

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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.