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Finding the Fourth Proportional to 69,502.70, 95,919.72 and 39,293.42

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Solution

The fourth proportional to 69,502.70, 95,919.72 and 39,293.42 is: 54,228.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,502.70 : 95,919.72 = 39,293.42 : x
  2. Step 2: Convert to fraction form
    69,502.70/95,919.72 = 39,293.42/x
  3. Step 3: Cross multiply
    69,502.70x = 95,919.72 × 39,293.42
  4. Step 4: Simplify right side
    69,502.70x = 3,769,013,844.24
  5. Step 5: Solve for x
    x = 3,769,013,844.24/69,502.70
  6. Step 6: Final answer
    x = 54,228.31

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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.