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Finding the Fourth Proportional to 62,163.76, 85,786 and 33,869.44

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Solution

The fourth proportional to 62,163.76, 85,786 and 33,869.44 is: 46,739.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,163.76 : 85,786 = 33,869.44 : x
  2. Step 2: Convert to fraction form
    62,163.76/85,786 = 33,869.44/x
  3. Step 3: Cross multiply
    62,163.76x = 85,786 × 33,869.44
  4. Step 4: Simplify right side
    62,163.76x = 2,905,523,779.84
  5. Step 5: Solve for x
    x = 2,905,523,779.84/62,163.76
  6. Step 6: Final answer
    x = 46,739.83

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1.5x scale

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.