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Finding the Fourth Proportional to 28,952.73, 43,428.64 and 9,231.15

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Solution

The fourth proportional to 28,952.73, 43,428.64 and 9,231.15 is: 13,846.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,952.73 : 43,428.64 = 9,231.15 : x
  2. Step 2: Convert to fraction form
    28,952.73/43,428.64 = 9,231.15/x
  3. Step 3: Cross multiply
    28,952.73x = 43,428.64 × 9,231.15
  4. Step 4: Simplify right side
    28,952.73x = 400,896,290.14
  5. Step 5: Solve for x
    x = 400,896,290.14/28,952.73
  6. Step 6: Final answer
    x = 13,846.58

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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.