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Finding the Fourth Proportional to 29,828.70, 44,757.45 and 21,044.70

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Solution

The fourth proportional to 29,828.70, 44,757.45 and 21,044.70 is: 31,577.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,828.70 : 44,757.45 = 21,044.70 : x
  2. Step 2: Convert to fraction form
    29,828.70/44,757.45 = 21,044.70/x
  3. Step 3: Cross multiply
    29,828.70x = 44,757.45 × 21,044.70
  4. Step 4: Simplify right side
    29,828.70x = 941,907,108.02
  5. Step 5: Solve for x
    x = 941,907,108.02/29,828.70
  6. Step 6: Final answer
    x = 31,577.21

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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.