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Finding the Fourth Proportional to 13,885.44, 20,802.24 and 10,800.96

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Solution

The fourth proportional to 13,885.44, 20,802.24 and 10,800.96 is: 16,181.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,885.44 : 20,802.24 = 10,800.96 : x
  2. Step 2: Convert to fraction form
    13,885.44/20,802.24 = 10,800.96/x
  3. Step 3: Cross multiply
    13,885.44x = 20,802.24 × 10,800.96
  4. Step 4: Simplify right side
    13,885.44x = 224,684,162.15
  5. Step 5: Solve for x
    x = 224,684,162.15/13,885.44
  6. Step 6: Final answer
    x = 16,181.28

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1.5x scale

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.