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Finding the Fourth Proportional to 28,964.52, 43,443.34 and 7,906.28

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Solution

The fourth proportional to 28,964.52, 43,443.34 and 7,906.28 is: 11,858.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964.52 : 43,443.34 = 7,906.28 : x
  2. Step 2: Convert to fraction form
    28,964.52/43,443.34 = 7,906.28/x
  3. Step 3: Cross multiply
    28,964.52x = 43,443.34 × 7,906.28
  4. Step 4: Simplify right side
    28,964.52x = 343,474,973.19
  5. Step 5: Solve for x
    x = 343,474,973.19/28,964.52
  6. Step 6: Final answer
    x = 11,858.47

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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.