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Finding the Fourth Proportional to 52,728.33, 72,767.03 and 30,063.68

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Solution

The fourth proportional to 52,728.33, 72,767.03 and 30,063.68 is: 41,488.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,728.33 : 72,767.03 = 30,063.68 : x
  2. Step 2: Convert to fraction form
    52,728.33/72,767.03 = 30,063.68/x
  3. Step 3: Cross multiply
    52,728.33x = 72,767.03 × 30,063.68
  4. Step 4: Simplify right side
    52,728.33x = 2,187,644,704.47
  5. Step 5: Solve for x
    x = 2,187,644,704.47/52,728.33
  6. Step 6: Final answer
    x = 41,488.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.