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Finding the Fourth Proportional to 63,470.72, 87,589.44 and 36,612.80

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Solution

The fourth proportional to 63,470.72, 87,589.44 and 36,612.80 is: 50,525.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,470.72 : 87,589.44 = 36,612.80 : x
  2. Step 2: Convert to fraction form
    63,470.72/87,589.44 = 36,612.80/x
  3. Step 3: Cross multiply
    63,470.72x = 87,589.44 × 36,612.80
  4. Step 4: Simplify right side
    63,470.72x = 3,206,894,648.83
  5. Step 5: Solve for x
    x = 3,206,894,648.83/63,470.72
  6. Step 6: Final answer
    x = 50,525.58

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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.