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Finding the Fourth Proportional to 61,871.22, 85,382.56 and 33,576.90

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Solution

The fourth proportional to 61,871.22, 85,382.56 and 33,576.90 is: 46,336.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,871.22 : 85,382.56 = 33,576.90 : x
  2. Step 2: Convert to fraction form
    61,871.22/85,382.56 = 33,576.90/x
  3. Step 3: Cross multiply
    61,871.22x = 85,382.56 × 33,576.90
  4. Step 4: Simplify right side
    61,871.22x = 2,866,881,678.86
  5. Step 5: Solve for x
    x = 2,866,881,678.86/61,871.22
  6. Step 6: Final answer
    x = 46,336.27

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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.