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Finding the Fourth Proportional to 28,732.36, 43,098.54 and 7,956.04

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Solution

The fourth proportional to 28,732.36, 43,098.54 and 7,956.04 is: 11,934.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,732.36 : 43,098.54 = 7,956.04 : x
  2. Step 2: Convert to fraction form
    28,732.36/43,098.54 = 7,956.04/x
  3. Step 3: Cross multiply
    28,732.36x = 43,098.54 × 7,956.04
  4. Step 4: Simplify right side
    28,732.36x = 342,893,708.18
  5. Step 5: Solve for x
    x = 342,893,708.18/28,732.36
  6. Step 6: Final answer
    x = 11,934.06

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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.