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Finding the Fourth Proportional to 10,840.67, 14,960.12 and 5,872.67

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Solution

The fourth proportional to 10,840.67, 14,960.12 and 5,872.67 is: 8,104.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,840.67 : 14,960.12 = 5,872.67 : x
  2. Step 2: Convert to fraction form
    10,840.67/14,960.12 = 5,872.67/x
  3. Step 3: Cross multiply
    10,840.67x = 14,960.12 × 5,872.67
  4. Step 4: Simplify right side
    10,840.67x = 87,855,847.92
  5. Step 5: Solve for x
    x = 87,855,847.92/10,840.67
  6. Step 6: Final answer
    x = 8,104.28

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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.