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Finding the Fourth Proportional to 27,901.20, 41,799.02 and 21,630.51

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Solution

The fourth proportional to 27,901.20, 41,799.02 and 21,630.51 is: 32,404.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,901.20 : 41,799.02 = 21,630.51 : x
  2. Step 2: Convert to fraction form
    27,901.20/41,799.02 = 21,630.51/x
  3. Step 3: Cross multiply
    27,901.20x = 41,799.02 × 21,630.51
  4. Step 4: Simplify right side
    27,901.20x = 904,134,120.10
  5. Step 5: Solve for x
    x = 904,134,120.10/27,901.20
  6. Step 6: Final answer
    x = 32,404.85

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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.