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Finding the Fourth Proportional to 17,113.01, 25,669.51 and 5,425.31

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Solution

The fourth proportional to 17,113.01, 25,669.51 and 5,425.31 is: 8,137.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,113.01 : 25,669.51 = 5,425.31 : x
  2. Step 2: Convert to fraction form
    17,113.01/25,669.51 = 5,425.31/x
  3. Step 3: Cross multiply
    17,113.01x = 25,669.51 × 5,425.31
  4. Step 4: Simplify right side
    17,113.01x = 139,265,099.91
  5. Step 5: Solve for x
    x = 139,265,099.91/17,113.01
  6. Step 6: Final answer
    x = 8,137.97

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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.