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Finding the Fourth Proportional to 9,667, 13,340.54 and 5,251

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Solution

The fourth proportional to 9,667, 13,340.54 and 5,251 is: 7,246.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,667 : 13,340.54 = 5,251 : x
  2. Step 2: Convert to fraction form
    9,667/13,340.54 = 5,251/x
  3. Step 3: Cross multiply
    9,667x = 13,340.54 × 5,251
  4. Step 4: Simplify right side
    9,667x = 70,051,175.54
  5. Step 5: Solve for x
    x = 70,051,175.54/9,667
  6. Step 6: Final answer
    x = 7,246.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.