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Finding the Fourth Proportional to 37,939.20, 56,908.80 and 35,347.20

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Solution

The fourth proportional to 37,939.20, 56,908.80 and 35,347.20 is: 53,020.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,939.20 : 56,908.80 = 35,347.20 : x
  2. Step 2: Convert to fraction form
    37,939.20/56,908.80 = 35,347.20/x
  3. Step 3: Cross multiply
    37,939.20x = 56,908.80 × 35,347.20
  4. Step 4: Simplify right side
    37,939.20x = 2,011,566,735.36
  5. Step 5: Solve for x
    x = 2,011,566,735.36/37,939.20
  6. Step 6: Final answer
    x = 53,020.80

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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.