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Finding the Fourth Proportional to 5,861.70, 8,793.72 and 1,913.94

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Solution

The fourth proportional to 5,861.70, 8,793.72 and 1,913.94 is: 2,871.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,861.70 : 8,793.72 = 1,913.94 : x
  2. Step 2: Convert to fraction form
    5,861.70/8,793.72 = 1,913.94/x
  3. Step 3: Cross multiply
    5,861.70x = 8,793.72 × 1,913.94
  4. Step 4: Simplify right side
    5,861.70x = 16,830,652.46
  5. Step 5: Solve for x
    x = 16,830,652.46/5,861.70
  6. Step 6: Final answer
    x = 2,871.29

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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.