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Finding the Fourth Proportional to 47,866.46, 71,799.71 and 21,540.45

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Solution

The fourth proportional to 47,866.46, 71,799.71 and 21,540.45 is: 32,310.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,866.46 : 71,799.71 = 21,540.45 : x
  2. Step 2: Convert to fraction form
    47,866.46/71,799.71 = 21,540.45/x
  3. Step 3: Cross multiply
    47,866.46x = 71,799.71 × 21,540.45
  4. Step 4: Simplify right side
    47,866.46x = 1,546,597,955.57
  5. Step 5: Solve for x
    x = 1,546,597,955.57/47,866.46
  6. Step 6: Final answer
    x = 32,310.69

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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.