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Finding the Fourth Proportional to 16,861.44, 25,248 and 11,001.60

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Solution

The fourth proportional to 16,861.44, 25,248 and 11,001.60 is: 16,473.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,861.44 : 25,248 = 11,001.60 : x
  2. Step 2: Convert to fraction form
    16,861.44/25,248 = 11,001.60/x
  3. Step 3: Cross multiply
    16,861.44x = 25,248 × 11,001.60
  4. Step 4: Simplify right side
    16,861.44x = 277,768,396.80
  5. Step 5: Solve for x
    x = 277,768,396.80/16,861.44
  6. Step 6: Final answer
    x = 16,473.59

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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.