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Finding the Fourth Proportional to 28,964.58, 43,447.62 and 9,243.11

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Solution

The fourth proportional to 28,964.58, 43,447.62 and 9,243.11 is: 13,864.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964.58 : 43,447.62 = 9,243.11 : x
  2. Step 2: Convert to fraction form
    28,964.58/43,447.62 = 9,243.11/x
  3. Step 3: Cross multiply
    28,964.58x = 43,447.62 × 9,243.11
  4. Step 4: Simplify right side
    28,964.58x = 401,591,335.28
  5. Step 5: Solve for x
    x = 401,591,335.28/28,964.58
  6. Step 6: Final answer
    x = 13,864.91

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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.