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Finding the Fourth Proportional to 9,488.08, 14,212.28 and 7,629.14

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Solution

The fourth proportional to 9,488.08, 14,212.28 and 7,629.14 is: 11,427.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,488.08 : 14,212.28 = 7,629.14 : x
  2. Step 2: Convert to fraction form
    9,488.08/14,212.28 = 7,629.14/x
  3. Step 3: Cross multiply
    9,488.08x = 14,212.28 × 7,629.14
  4. Step 4: Simplify right side
    9,488.08x = 108,427,473.84
  5. Step 5: Solve for x
    x = 108,427,473.84/9,488.08
  6. Step 6: Final answer
    x = 11,427.76

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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.