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Finding the Fourth Proportional to 15,167.92, 20,930.04 and 9,201.04

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Solution

The fourth proportional to 15,167.92, 20,930.04 and 9,201.04 is: 12,696.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,167.92 : 20,930.04 = 9,201.04 : x
  2. Step 2: Convert to fraction form
    15,167.92/20,930.04 = 9,201.04/x
  3. Step 3: Cross multiply
    15,167.92x = 20,930.04 × 9,201.04
  4. Step 4: Simplify right side
    15,167.92x = 192,578,135.24
  5. Step 5: Solve for x
    x = 192,578,135.24/15,167.92
  6. Step 6: Final answer
    x = 12,696.41

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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.