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Finding the Fourth Proportional to 53,491.91, 80,207.87 and 36,643.97

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Solution

The fourth proportional to 53,491.91, 80,207.87 and 36,643.97 is: 54,945.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,491.91 : 80,207.87 = 36,643.97 : x
  2. Step 2: Convert to fraction form
    53,491.91/80,207.87 = 36,643.97/x
  3. Step 3: Cross multiply
    53,491.91x = 80,207.87 × 36,643.97
  4. Step 4: Simplify right side
    53,491.91x = 2,939,134,472.61
  5. Step 5: Solve for x
    x = 2,939,134,472.61/53,491.91
  6. Step 6: Final answer
    x = 54,945.41

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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.