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Finding the Fourth Proportional to 53,242.62, 79,796.08 and 28,294.62

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Solution

The fourth proportional to 53,242.62, 79,796.08 and 28,294.62 is: 42,405.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,242.62 : 79,796.08 = 28,294.62 : x
  2. Step 2: Convert to fraction form
    53,242.62/79,796.08 = 28,294.62/x
  3. Step 3: Cross multiply
    53,242.62x = 79,796.08 × 28,294.62
  4. Step 4: Simplify right side
    53,242.62x = 2,257,799,761.09
  5. Step 5: Solve for x
    x = 2,257,799,761.09/53,242.62
  6. Step 6: Final answer
    x = 42,405.87

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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.