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Finding the Fourth Proportional to 48,743.70, 73,006.20 and 39,995.70

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Solution

The fourth proportional to 48,743.70, 73,006.20 and 39,995.70 is: 59,903.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,743.70 : 73,006.20 = 39,995.70 : x
  2. Step 2: Convert to fraction form
    48,743.70/73,006.20 = 39,995.70/x
  3. Step 3: Cross multiply
    48,743.70x = 73,006.20 × 39,995.70
  4. Step 4: Simplify right side
    48,743.70x = 2,919,934,073.34
  5. Step 5: Solve for x
    x = 2,919,934,073.34/48,743.70
  6. Step 6: Final answer
    x = 59,903.82

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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.