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Finding the Fourth Proportional to 62,149.76, 85,766.56 and 33,855.36

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Solution

The fourth proportional to 62,149.76, 85,766.56 and 33,855.36 is: 46,720.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,149.76 : 85,766.56 = 33,855.36 : x
  2. Step 2: Convert to fraction form
    62,149.76/85,766.56 = 33,855.36/x
  3. Step 3: Cross multiply
    62,149.76x = 85,766.56 × 33,855.36
  4. Step 4: Simplify right side
    62,149.76x = 2,903,657,764.76
  5. Step 5: Solve for x
    x = 2,903,657,764.76/62,149.76
  6. Step 6: Final answer
    x = 46,720.34

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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.