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Finding the Fourth Proportional to 53,791.84, 80,515.23 and 28,769.32

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Solution

The fourth proportional to 53,791.84, 80,515.23 and 28,769.32 is: 43,061.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,791.84 : 80,515.23 = 28,769.32 : x
  2. Step 2: Convert to fraction form
    53,791.84/80,515.23 = 28,769.32/x
  3. Step 3: Cross multiply
    53,791.84x = 80,515.23 × 28,769.32
  4. Step 4: Simplify right side
    53,791.84x = 2,316,368,416.74
  5. Step 5: Solve for x
    x = 2,316,368,416.74/53,791.84
  6. Step 6: Final answer
    x = 43,061.71

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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.