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Finding the Fourth Proportional to 11,815.29, 17,722.95 and 11,093.58

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Solution

The fourth proportional to 11,815.29, 17,722.95 and 11,093.58 is: 16,640.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.29 : 17,722.95 = 11,093.58 : x
  2. Step 2: Convert to fraction form
    11,815.29/17,722.95 = 11,093.58/x
  3. Step 3: Cross multiply
    11,815.29x = 17,722.95 × 11,093.58
  4. Step 4: Simplify right side
    11,815.29x = 196,610,963.66
  5. Step 5: Solve for x
    x = 196,610,963.66/11,815.29
  6. Step 6: Final answer
    x = 16,640.38

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1.5x scale

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.