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Finding the Fourth Proportional to 56,505.60, 84,823.20 and 33,145.20

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Solution

The fourth proportional to 56,505.60, 84,823.20 and 33,145.20 is: 49,755.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,505.60 : 84,823.20 = 33,145.20 : x
  2. Step 2: Convert to fraction form
    56,505.60/84,823.20 = 33,145.20/x
  3. Step 3: Cross multiply
    56,505.60x = 84,823.20 × 33,145.20
  4. Step 4: Simplify right side
    56,505.60x = 2,811,481,928.64
  5. Step 5: Solve for x
    x = 2,811,481,928.64/56,505.60
  6. Step 6: Final answer
    x = 49,755.81

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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.