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Finding the Fourth Proportional to 53,174.80, 73,380.36 and 28,976.08

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Solution

The fourth proportional to 53,174.80, 73,380.36 and 28,976.08 is: 39,986.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,174.80 : 73,380.36 = 28,976.08 : x
  2. Step 2: Convert to fraction form
    53,174.80/73,380.36 = 28,976.08/x
  3. Step 3: Cross multiply
    53,174.80x = 73,380.36 × 28,976.08
  4. Step 4: Simplify right side
    53,174.80x = 2,126,275,181.79
  5. Step 5: Solve for x
    x = 2,126,275,181.79/53,174.80
  6. Step 6: Final answer
    x = 39,986.52

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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.