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Finding the Fourth Proportional to 28,839, 39,761.77 and 24,065.81

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Solution

The fourth proportional to 28,839, 39,761.77 and 24,065.81 is: 33,180.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,839 : 39,761.77 = 24,065.81 : x
  2. Step 2: Convert to fraction form
    28,839/39,761.77 = 24,065.81/x
  3. Step 3: Cross multiply
    28,839x = 39,761.77 × 24,065.81
  4. Step 4: Simplify right side
    28,839x = 956,899,202.08
  5. Step 5: Solve for x
    x = 956,899,202.08/28,839
  6. Step 6: Final answer
    x = 33,180.73

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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.