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Finding the Fourth Proportional to 17,731.01, 26,596.43 and 5,251.11

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Solution

The fourth proportional to 17,731.01, 26,596.43 and 5,251.11 is: 7,876.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,731.01 : 26,596.43 = 5,251.11 : x
  2. Step 2: Convert to fraction form
    17,731.01/26,596.43 = 5,251.11/x
  3. Step 3: Cross multiply
    17,731.01x = 26,596.43 × 5,251.11
  4. Step 4: Simplify right side
    17,731.01x = 139,660,753.28
  5. Step 5: Solve for x
    x = 139,660,753.28/17,731.01
  6. Step 6: Final answer
    x = 7,876.64

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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.