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Finding the Fourth Proportional to 57,671.55, 79,586.60 and 32,520.87

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Solution

The fourth proportional to 57,671.55, 79,586.60 and 32,520.87 is: 44,878.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,671.55 : 79,586.60 = 32,520.87 : x
  2. Step 2: Convert to fraction form
    57,671.55/79,586.60 = 32,520.87/x
  3. Step 3: Cross multiply
    57,671.55x = 79,586.60 × 32,520.87
  4. Step 4: Simplify right side
    57,671.55x = 2,588,225,472.34
  5. Step 5: Solve for x
    x = 2,588,225,472.34/57,671.55
  6. Step 6: Final answer
    x = 44,878.72

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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.