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Finding the Fourth Proportional to 41,990.70, 62,986.05 and 37,908.30

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Solution

The fourth proportional to 41,990.70, 62,986.05 and 37,908.30 is: 56,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,990.70 : 62,986.05 = 37,908.30 : x
  2. Step 2: Convert to fraction form
    41,990.70/62,986.05 = 37,908.30/x
  3. Step 3: Cross multiply
    41,990.70x = 62,986.05 × 37,908.30
  4. Step 4: Simplify right side
    41,990.70x = 2,387,694,079.22
  5. Step 5: Solve for x
    x = 2,387,694,079.22/41,990.70
  6. Step 6: Final answer
    x = 56,862.45

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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.