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Finding the Fourth Proportional to 14,861.50, 20,508.88 and 8,893.42

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Solution

The fourth proportional to 14,861.50, 20,508.88 and 8,893.42 is: 12,272.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,861.50 : 20,508.88 = 8,893.42 : x
  2. Step 2: Convert to fraction form
    14,861.50/20,508.88 = 8,893.42/x
  3. Step 3: Cross multiply
    14,861.50x = 20,508.88 × 8,893.42
  4. Step 4: Simplify right side
    14,861.50x = 182,394,083.57
  5. Step 5: Solve for x
    x = 182,394,083.57/14,861.50
  6. Step 6: Final answer
    x = 12,272.93

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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.