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Finding the Fourth Proportional to 47,859.20, 71,659.20 and 37,491.20

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Solution

The fourth proportional to 47,859.20, 71,659.20 and 37,491.20 is: 56,135.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,859.20 : 71,659.20 = 37,491.20 : x
  2. Step 2: Convert to fraction form
    47,859.20/71,659.20 = 37,491.20/x
  3. Step 3: Cross multiply
    47,859.20x = 71,659.20 × 37,491.20
  4. Step 4: Simplify right side
    47,859.20x = 2,686,589,399.04
  5. Step 5: Solve for x
    x = 2,686,589,399.04/47,859.20
  6. Step 6: Final answer
    x = 56,135.28

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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.