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Finding the Fourth Proportional to 29,101.70, 43,717.35 and 27,920.90

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Solution

The fourth proportional to 29,101.70, 43,717.35 and 27,920.90 is: 41,943.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,101.70 : 43,717.35 = 27,920.90 : x
  2. Step 2: Convert to fraction form
    29,101.70/43,717.35 = 27,920.90/x
  3. Step 3: Cross multiply
    29,101.70x = 43,717.35 × 27,920.90
  4. Step 4: Simplify right side
    29,101.70x = 1,220,627,757.62
  5. Step 5: Solve for x
    x = 1,220,627,757.62/29,101.70
  6. Step 6: Final answer
    x = 41,943.52

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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.