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Finding the Fourth Proportional to 22,961.01, 34,408.66 and 13,079.88

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Solution

The fourth proportional to 22,961.01, 34,408.66 and 13,079.88 is: 19,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,961.01 : 34,408.66 = 13,079.88 : x
  2. Step 2: Convert to fraction form
    22,961.01/34,408.66 = 13,079.88/x
  3. Step 3: Cross multiply
    22,961.01x = 34,408.66 × 13,079.88
  4. Step 4: Simplify right side
    22,961.01x = 450,061,078.36
  5. Step 5: Solve for x
    x = 450,061,078.36/22,961.01
  6. Step 6: Final answer
    x = 19,601.10

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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.