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Finding the Fourth Proportional to 61,977.88, 85,525.86 and 33,683.32

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Solution

The fourth proportional to 61,977.88, 85,525.86 and 33,683.32 is: 46,481.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,977.88 : 85,525.86 = 33,683.32 : x
  2. Step 2: Convert to fraction form
    61,977.88/85,525.86 = 33,683.32/x
  3. Step 3: Cross multiply
    61,977.88x = 85,525.86 × 33,683.32
  4. Step 4: Simplify right side
    61,977.88x = 2,880,794,910.66
  5. Step 5: Solve for x
    x = 2,880,794,910.66/61,977.88
  6. Step 6: Final answer
    x = 46,481.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.