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Finding the Fourth Proportional to 13,495, 20,243.22 and 5,176.24

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Solution

The fourth proportional to 13,495, 20,243.22 and 5,176.24 is: 7,764.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,495 : 20,243.22 = 5,176.24 : x
  2. Step 2: Convert to fraction form
    13,495/20,243.22 = 5,176.24/x
  3. Step 3: Cross multiply
    13,495x = 20,243.22 × 5,176.24
  4. Step 4: Simplify right side
    13,495x = 104,783,765.09
  5. Step 5: Solve for x
    x = 104,783,765.09/13,495
  6. Step 6: Final answer
    x = 7,764.64

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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.