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Finding the Fourth Proportional to 12,262.75, 18,394.17 and 3,028.75

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Solution

The fourth proportional to 12,262.75, 18,394.17 and 3,028.75 is: 4,543.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,262.75 : 18,394.17 = 3,028.75 : x
  2. Step 2: Convert to fraction form
    12,262.75/18,394.17 = 3,028.75/x
  3. Step 3: Cross multiply
    12,262.75x = 18,394.17 × 3,028.75
  4. Step 4: Simplify right side
    12,262.75x = 55,711,342.39
  5. Step 5: Solve for x
    x = 55,711,342.39/12,262.75
  6. Step 6: Final answer
    x = 4,543.14

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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.