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Finding the Fourth Proportional to 11,199.01, 16,786.72 and 5,640.67

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Solution

The fourth proportional to 11,199.01, 16,786.72 and 5,640.67 is: 8,455.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,199.01 : 16,786.72 = 5,640.67 : x
  2. Step 2: Convert to fraction form
    11,199.01/16,786.72 = 5,640.67/x
  3. Step 3: Cross multiply
    11,199.01x = 16,786.72 × 5,640.67
  4. Step 4: Simplify right side
    11,199.01x = 94,688,360.07
  5. Step 5: Solve for x
    x = 94,688,360.07/11,199.01
  6. Step 6: Final answer
    x = 8,455.07

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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.