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Finding the Fourth Proportional to 11,195.72, 16,808.16 and 8,600.48

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Solution

The fourth proportional to 11,195.72, 16,808.16 and 8,600.48 is: 12,911.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,195.72 : 16,808.16 = 8,600.48 : x
  2. Step 2: Convert to fraction form
    11,195.72/16,808.16 = 8,600.48/x
  3. Step 3: Cross multiply
    11,195.72x = 16,808.16 × 8,600.48
  4. Step 4: Simplify right side
    11,195.72x = 144,558,243.92
  5. Step 5: Solve for x
    x = 144,558,243.92/11,195.72
  6. Step 6: Final answer
    x = 12,911.92

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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.