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Finding the Fourth Proportional to 18,628.88, 27,926.62 and 6,934.12

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Solution

The fourth proportional to 18,628.88, 27,926.62 and 6,934.12 is: 10,394.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.88 : 27,926.62 = 6,934.12 : x
  2. Step 2: Convert to fraction form
    18,628.88/27,926.62 = 6,934.12/x
  3. Step 3: Cross multiply
    18,628.88x = 27,926.62 × 6,934.12
  4. Step 4: Simplify right side
    18,628.88x = 193,646,534.27
  5. Step 5: Solve for x
    x = 193,646,534.27/18,628.88
  6. Step 6: Final answer
    x = 10,394.96

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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.