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Finding the Fourth Proportional to 14,893.83, 20,553.51 and 8,179.89

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Solution

The fourth proportional to 14,893.83, 20,553.51 and 8,179.89 is: 11,288.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,893.83 : 20,553.51 = 8,179.89 : x
  2. Step 2: Convert to fraction form
    14,893.83/20,553.51 = 8,179.89/x
  3. Step 3: Cross multiply
    14,893.83x = 20,553.51 × 8,179.89
  4. Step 4: Simplify right side
    14,893.83x = 168,125,450.91
  5. Step 5: Solve for x
    x = 168,125,450.91/14,893.83
  6. Step 6: Final answer
    x = 11,288.26

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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.