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Finding the Fourth Proportional to 53,841.20, 80,848.20 and 36,388.40

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Solution

The fourth proportional to 53,841.20, 80,848.20 and 36,388.40 is: 54,640.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,841.20 : 80,848.20 = 36,388.40 : x
  2. Step 2: Convert to fraction form
    53,841.20/80,848.20 = 36,388.40/x
  3. Step 3: Cross multiply
    53,841.20x = 80,848.20 × 36,388.40
  4. Step 4: Simplify right side
    53,841.20x = 2,941,936,640.88
  5. Step 5: Solve for x
    x = 2,941,936,640.88/53,841.20
  6. Step 6: Final answer
    x = 54,640.99

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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.