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Finding the Fourth Proportional to 15,067.63, 20,794.04 and 9,405.73

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Solution

The fourth proportional to 15,067.63, 20,794.04 and 9,405.73 is: 12,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,067.63 : 20,794.04 = 9,405.73 : x
  2. Step 2: Convert to fraction form
    15,067.63/20,794.04 = 9,405.73/x
  3. Step 3: Cross multiply
    15,067.63x = 20,794.04 × 9,405.73
  4. Step 4: Simplify right side
    15,067.63x = 195,583,125.85
  5. Step 5: Solve for x
    x = 195,583,125.85/15,067.63
  6. Step 6: Final answer
    x = 12,980.35

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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.