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Finding the Fourth Proportional to 7,196.72, 10,795.10 and 2,811.11

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Solution

The fourth proportional to 7,196.72, 10,795.10 and 2,811.11 is: 4,216.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,196.72 : 10,795.10 = 2,811.11 : x
  2. Step 2: Convert to fraction form
    7,196.72/10,795.10 = 2,811.11/x
  3. Step 3: Cross multiply
    7,196.72x = 10,795.10 × 2,811.11
  4. Step 4: Simplify right side
    7,196.72x = 30,346,213.56
  5. Step 5: Solve for x
    x = 30,346,213.56/7,196.72
  6. Step 6: Final answer
    x = 4,216.67

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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.