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Finding the Fourth Proportional to 57,861.40, 79,845.54 and 32,709.32

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Solution

The fourth proportional to 57,861.40, 79,845.54 and 32,709.32 is: 45,137.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,861.40 : 79,845.54 = 32,709.32 : x
  2. Step 2: Convert to fraction form
    57,861.40/79,845.54 = 32,709.32/x
  3. Step 3: Cross multiply
    57,861.40x = 79,845.54 × 32,709.32
  4. Step 4: Simplify right side
    57,861.40x = 2,611,693,318.43
  5. Step 5: Solve for x
    x = 2,611,693,318.43/57,861.40
  6. Step 6: Final answer
    x = 45,137.06

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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.