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Finding the Fourth Proportional to 53,792, 74,234.78 and 29,593.98

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Solution

The fourth proportional to 53,792, 74,234.78 and 29,593.98 is: 40,840.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,792 : 74,234.78 = 29,593.98 : x
  2. Step 2: Convert to fraction form
    53,792/74,234.78 = 29,593.98/x
  3. Step 3: Cross multiply
    53,792x = 74,234.78 × 29,593.98
  4. Step 4: Simplify right side
    53,792x = 2,196,902,594.62
  5. Step 5: Solve for x
    x = 2,196,902,594.62/53,792
  6. Step 6: Final answer
    x = 40,840.69

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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.