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Finding the Fourth Proportional to 11,235.92, 16,857.12 and 3,445.88

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Solution

The fourth proportional to 11,235.92, 16,857.12 and 3,445.88 is: 5,169.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,235.92 : 16,857.12 = 3,445.88 : x
  2. Step 2: Convert to fraction form
    11,235.92/16,857.12 = 3,445.88/x
  3. Step 3: Cross multiply
    11,235.92x = 16,857.12 × 3,445.88
  4. Step 4: Simplify right side
    11,235.92x = 58,087,612.67
  5. Step 5: Solve for x
    x = 58,087,612.67/11,235.92
  6. Step 6: Final answer
    x = 5,169.81

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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.