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Finding the Fourth Proportional to 28,957.02, 43,443.02 and 8,180.52

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Solution

The fourth proportional to 28,957.02, 43,443.02 and 8,180.52 is: 12,272.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,957.02 : 43,443.02 = 8,180.52 : x
  2. Step 2: Convert to fraction form
    28,957.02/43,443.02 = 8,180.52/x
  3. Step 3: Cross multiply
    28,957.02x = 43,443.02 × 8,180.52
  4. Step 4: Simplify right side
    28,957.02x = 355,386,493.97
  5. Step 5: Solve for x
    x = 355,386,493.97/28,957.02
  6. Step 6: Final answer
    x = 12,272.90

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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.