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Finding the Fourth Proportional to 18,607.62, 27,867.69 and 8,725.62

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Solution

The fourth proportional to 18,607.62, 27,867.69 and 8,725.62 is: 13,067.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.62 : 27,867.69 = 8,725.62 : x
  2. Step 2: Convert to fraction form
    18,607.62/27,867.69 = 8,725.62/x
  3. Step 3: Cross multiply
    18,607.62x = 27,867.69 × 8,725.62
  4. Step 4: Simplify right side
    18,607.62x = 243,162,873.22
  5. Step 5: Solve for x
    x = 243,162,873.22/18,607.62
  6. Step 6: Final answer
    x = 13,067.92

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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.