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Finding the Fourth Proportional to 9,658.78, 14,494.26 and 4,112.11

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Solution

The fourth proportional to 9,658.78, 14,494.26 and 4,112.11 is: 6,170.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,658.78 : 14,494.26 = 4,112.11 : x
  2. Step 2: Convert to fraction form
    9,658.78/14,494.26 = 4,112.11/x
  3. Step 3: Cross multiply
    9,658.78x = 14,494.26 × 4,112.11
  4. Step 4: Simplify right side
    9,658.78x = 59,601,955.25
  5. Step 5: Solve for x
    x = 59,601,955.25/9,658.78
  6. Step 6: Final answer
    x = 6,170.76

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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.