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Finding the Fourth Proportional to 28,784.73, 43,149.39 and 14,751.39

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Solution

The fourth proportional to 28,784.73, 43,149.39 and 14,751.39 is: 22,112.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,784.73 : 43,149.39 = 14,751.39 : x
  2. Step 2: Convert to fraction form
    28,784.73/43,149.39 = 14,751.39/x
  3. Step 3: Cross multiply
    28,784.73x = 43,149.39 × 14,751.39
  4. Step 4: Simplify right side
    28,784.73x = 636,513,480.15
  5. Step 5: Solve for x
    x = 636,513,480.15/28,784.73
  6. Step 6: Final answer
    x = 22,112.89

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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.