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Finding the Fourth Proportional to 48,633.97, 72,972.39 and 20,573.39

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Solution

The fourth proportional to 48,633.97, 72,972.39 and 20,573.39 is: 30,869.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,633.97 : 72,972.39 = 20,573.39 : x
  2. Step 2: Convert to fraction form
    48,633.97/72,972.39 = 20,573.39/x
  3. Step 3: Cross multiply
    48,633.97x = 72,972.39 × 20,573.39
  4. Step 4: Simplify right side
    48,633.97x = 1,501,289,698.28
  5. Step 5: Solve for x
    x = 1,501,289,698.28/48,633.97
  6. Step 6: Final answer
    x = 30,869.16

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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.