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Finding the Fourth Proportional to 33,369.60, 50,061.76 and 12,593.28

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Solution

The fourth proportional to 33,369.60, 50,061.76 and 12,593.28 is: 18,892.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,369.60 : 50,061.76 = 12,593.28 : x
  2. Step 2: Convert to fraction form
    33,369.60/50,061.76 = 12,593.28/x
  3. Step 3: Cross multiply
    33,369.60x = 50,061.76 × 12,593.28
  4. Step 4: Simplify right side
    33,369.60x = 630,441,760.97
  5. Step 5: Solve for x
    x = 630,441,760.97/33,369.60
  6. Step 6: Final answer
    x = 18,892.70

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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.