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Finding the Fourth Proportional to 8,937.81, 13,408.29 and 3,015.27

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Solution

The fourth proportional to 8,937.81, 13,408.29 and 3,015.27 is: 4,523.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,937.81 : 13,408.29 = 3,015.27 : x
  2. Step 2: Convert to fraction form
    8,937.81/13,408.29 = 3,015.27/x
  3. Step 3: Cross multiply
    8,937.81x = 13,408.29 × 3,015.27
  4. Step 4: Simplify right side
    8,937.81x = 40,429,614.59
  5. Step 5: Solve for x
    x = 40,429,614.59/8,937.81
  6. Step 6: Final answer
    x = 4,523.44

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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.