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Finding the Fourth Proportional to 12,169.92, 18,254.86 and 2,935.92

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Solution

The fourth proportional to 12,169.92, 18,254.86 and 2,935.92 is: 4,403.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.92 : 18,254.86 = 2,935.92 : x
  2. Step 2: Convert to fraction form
    12,169.92/18,254.86 = 2,935.92/x
  3. Step 3: Cross multiply
    12,169.92x = 18,254.86 × 2,935.92
  4. Step 4: Simplify right side
    12,169.92x = 53,594,808.57
  5. Step 5: Solve for x
    x = 53,594,808.57/12,169.92
  6. Step 6: Final answer
    x = 4,403.88

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1.5x scale

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.