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Finding the Fourth Proportional to 29,891.72, 44,815.62 and 14,320.28

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Solution

The fourth proportional to 29,891.72, 44,815.62 and 14,320.28 is: 21,469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,891.72 : 44,815.62 = 14,320.28 : x
  2. Step 2: Convert to fraction form
    29,891.72/44,815.62 = 14,320.28/x
  3. Step 3: Cross multiply
    29,891.72x = 44,815.62 × 14,320.28
  4. Step 4: Simplify right side
    29,891.72x = 641,772,226.77
  5. Step 5: Solve for x
    x = 641,772,226.77/29,891.72
  6. Step 6: Final answer
    x = 21,469.90

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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.