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Finding the Fourth Proportional to 32,487.28, 48,731.04 and 7,863.28

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Solution

The fourth proportional to 32,487.28, 48,731.04 and 7,863.28 is: 11,794.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,487.28 : 48,731.04 = 7,863.28 : x
  2. Step 2: Convert to fraction form
    32,487.28/48,731.04 = 7,863.28/x
  3. Step 3: Cross multiply
    32,487.28x = 48,731.04 × 7,863.28
  4. Step 4: Simplify right side
    32,487.28x = 383,185,812.21
  5. Step 5: Solve for x
    x = 383,185,812.21/32,487.28
  6. Step 6: Final answer
    x = 11,794.95

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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.