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Finding the Fourth Proportional to 26,990.52, 40,481.18 and 7,264.68

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Solution

The fourth proportional to 26,990.52, 40,481.18 and 7,264.68 is: 10,895.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,990.52 : 40,481.18 = 7,264.68 : x
  2. Step 2: Convert to fraction form
    26,990.52/40,481.18 = 7,264.68/x
  3. Step 3: Cross multiply
    26,990.52x = 40,481.18 × 7,264.68
  4. Step 4: Simplify right side
    26,990.52x = 294,082,818.72
  5. Step 5: Solve for x
    x = 294,082,818.72/26,990.52
  6. Step 6: Final answer
    x = 10,895.78

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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.