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Finding the Fourth Proportional to 40,261.20, 60,276.60 and 35,653.20

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Solution

The fourth proportional to 40,261.20, 60,276.60 and 35,653.20 is: 53,377.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,261.20 : 60,276.60 = 35,653.20 : x
  2. Step 2: Convert to fraction form
    40,261.20/60,276.60 = 35,653.20/x
  3. Step 3: Cross multiply
    40,261.20x = 60,276.60 × 35,653.20
  4. Step 4: Simplify right side
    40,261.20x = 2,149,053,675.12
  5. Step 5: Solve for x
    x = 2,149,053,675.12/40,261.20
  6. Step 6: Final answer
    x = 53,377.78

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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.