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Finding the Fourth Proportional to 28,997.39, 43,494.49 and 7,935.91

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Solution

The fourth proportional to 28,997.39, 43,494.49 and 7,935.91 is: 11,903.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.39 : 43,494.49 = 7,935.91 : x
  2. Step 2: Convert to fraction form
    28,997.39/43,494.49 = 7,935.91/x
  3. Step 3: Cross multiply
    28,997.39x = 43,494.49 × 7,935.91
  4. Step 4: Simplify right side
    28,997.39x = 345,168,259.32
  5. Step 5: Solve for x
    x = 345,168,259.32/28,997.39
  6. Step 6: Final answer
    x = 11,903.42

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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.