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Finding the Fourth Proportional to 26,259, 39,344.64 and 18,453.84

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Solution

The fourth proportional to 26,259, 39,344.64 and 18,453.84 is: 27,649.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,259 : 39,344.64 = 18,453.84 : x
  2. Step 2: Convert to fraction form
    26,259/39,344.64 = 18,453.84/x
  3. Step 3: Cross multiply
    26,259x = 39,344.64 × 18,453.84
  4. Step 4: Simplify right side
    26,259x = 726,059,691.42
  5. Step 5: Solve for x
    x = 726,059,691.42/26,259
  6. Step 6: Final answer
    x = 27,649.94

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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.