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Finding the Fourth Proportional to 15,107.38, 20,843.24 and 8,733.12

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Solution

The fourth proportional to 15,107.38, 20,843.24 and 8,733.12 is: 12,048.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,107.38 : 20,843.24 = 8,733.12 : x
  2. Step 2: Convert to fraction form
    15,107.38/20,843.24 = 8,733.12/x
  3. Step 3: Cross multiply
    15,107.38x = 20,843.24 × 8,733.12
  4. Step 4: Simplify right side
    15,107.38x = 182,026,516.11
  5. Step 5: Solve for x
    x = 182,026,516.11/15,107.38
  6. Step 6: Final answer
    x = 12,048.85

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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.