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Finding the Fourth Proportional to 63,408.57, 95,128.64 and 19,036.14

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Solution

The fourth proportional to 63,408.57, 95,128.64 and 19,036.14 is: 28,558.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,408.57 : 95,128.64 = 19,036.14 : x
  2. Step 2: Convert to fraction form
    63,408.57/95,128.64 = 19,036.14/x
  3. Step 3: Cross multiply
    63,408.57x = 95,128.64 × 19,036.14
  4. Step 4: Simplify right side
    63,408.57x = 1,810,882,109.05
  5. Step 5: Solve for x
    x = 1,810,882,109.05/63,408.57
  6. Step 6: Final answer
    x = 28,558.95

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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.