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Finding the Fourth Proportional to 63,790.72, 95,686 and 52,649.44

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Solution

The fourth proportional to 63,790.72, 95,686 and 52,649.44 is: 78,974.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,790.72 : 95,686 = 52,649.44 : x
  2. Step 2: Convert to fraction form
    63,790.72/95,686 = 52,649.44/x
  3. Step 3: Cross multiply
    63,790.72x = 95,686 × 52,649.44
  4. Step 4: Simplify right side
    63,790.72x = 5,037,814,315.84
  5. Step 5: Solve for x
    x = 5,037,814,315.84/63,790.72
  6. Step 6: Final answer
    x = 78,974.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.