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Finding the Fourth Proportional to 61,871.78, 85,382.60 and 33,576.86

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Solution

The fourth proportional to 61,871.78, 85,382.60 and 33,576.86 is: 46,335.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,871.78 : 85,382.60 = 33,576.86 : x
  2. Step 2: Convert to fraction form
    61,871.78/85,382.60 = 33,576.86/x
  3. Step 3: Cross multiply
    61,871.78x = 85,382.60 × 33,576.86
  4. Step 4: Simplify right side
    61,871.78x = 2,866,879,606.64
  5. Step 5: Solve for x
    x = 2,866,879,606.64/61,871.78
  6. Step 6: Final answer
    x = 46,335.82

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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.