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Finding the Fourth Proportional to 53,530.54, 80,232.02 and 21,939.32

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Solution

The fourth proportional to 53,530.54, 80,232.02 and 21,939.32 is: 32,882.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,530.54 : 80,232.02 = 21,939.32 : x
  2. Step 2: Convert to fraction form
    53,530.54/80,232.02 = 21,939.32/x
  3. Step 3: Cross multiply
    53,530.54x = 80,232.02 × 21,939.32
  4. Step 4: Simplify right side
    53,530.54x = 1,760,235,961.03
  5. Step 5: Solve for x
    x = 1,760,235,961.03/53,530.54
  6. Step 6: Final answer
    x = 32,882.84

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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.