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Finding the Fourth Proportional to 14,893.58, 20,553.17 and 8,179.65

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Solution

The fourth proportional to 14,893.58, 20,553.17 and 8,179.65 is: 11,287.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,893.58 : 20,553.17 = 8,179.65 : x
  2. Step 2: Convert to fraction form
    14,893.58/20,553.17 = 8,179.65/x
  3. Step 3: Cross multiply
    14,893.58x = 20,553.17 × 8,179.65
  4. Step 4: Simplify right side
    14,893.58x = 168,117,685.61
  5. Step 5: Solve for x
    x = 168,117,685.61/14,893.58
  6. Step 6: Final answer
    x = 11,287.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.