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Finding the Fourth Proportional to 12,439.92, 17,167.04 and 6,850.92

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Solution

The fourth proportional to 12,439.92, 17,167.04 and 6,850.92 is: 9,454.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.92 : 17,167.04 = 6,850.92 : x
  2. Step 2: Convert to fraction form
    12,439.92/17,167.04 = 6,850.92/x
  3. Step 3: Cross multiply
    12,439.92x = 17,167.04 × 6,850.92
  4. Step 4: Simplify right side
    12,439.92x = 117,610,017.68
  5. Step 5: Solve for x
    x = 117,610,017.68/12,439.92
  6. Step 6: Final answer
    x = 9,454.24

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1.5x scale

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.