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Finding the Fourth Proportional to 57,603.85, 86,408.48 and 18,164.01

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Solution

The fourth proportional to 57,603.85, 86,408.48 and 18,164.01 is: 27,246.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,603.85 : 86,408.48 = 18,164.01 : x
  2. Step 2: Convert to fraction form
    57,603.85/86,408.48 = 18,164.01/x
  3. Step 3: Cross multiply
    57,603.85x = 86,408.48 × 18,164.01
  4. Step 4: Simplify right side
    57,603.85x = 1,569,524,494.80
  5. Step 5: Solve for x
    x = 1,569,524,494.80/57,603.85
  6. Step 6: Final answer
    x = 27,246.87

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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.