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Finding the Fourth Proportional to 57,942.72, 79,980.21 and 35,296.34

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Solution

The fourth proportional to 57,942.72, 79,980.21 and 35,296.34 is: 48,720.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,942.72 : 79,980.21 = 35,296.34 : x
  2. Step 2: Convert to fraction form
    57,942.72/79,980.21 = 35,296.34/x
  3. Step 3: Cross multiply
    57,942.72x = 79,980.21 × 35,296.34
  4. Step 4: Simplify right side
    57,942.72x = 2,823,008,285.53
  5. Step 5: Solve for x
    x = 2,823,008,285.53/57,942.72
  6. Step 6: Final answer
    x = 48,720.67

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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.