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Finding the Fourth Proportional to 47,955.64, 71,933.46 and 21,645.88

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Solution

The fourth proportional to 47,955.64, 71,933.46 and 21,645.88 is: 32,468.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,955.64 : 71,933.46 = 21,645.88 : x
  2. Step 2: Convert to fraction form
    47,955.64/71,933.46 = 21,645.88/x
  3. Step 3: Cross multiply
    47,955.64x = 71,933.46 × 21,645.88
  4. Step 4: Simplify right side
    47,955.64x = 1,557,063,043.14
  5. Step 5: Solve for x
    x = 1,557,063,043.14/47,955.64
  6. Step 6: Final answer
    x = 32,468.82

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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.