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Finding the Fourth Proportional to 12,262.74, 18,394.79 and 3,496.95

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Solution

The fourth proportional to 12,262.74, 18,394.79 and 3,496.95 is: 5,245.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,262.74 : 18,394.79 = 3,496.95 : x
  2. Step 2: Convert to fraction form
    12,262.74/18,394.79 = 3,496.95/x
  3. Step 3: Cross multiply
    12,262.74x = 18,394.79 × 3,496.95
  4. Step 4: Simplify right side
    12,262.74x = 64,325,643.41
  5. Step 5: Solve for x
    x = 64,325,643.41/12,262.74
  6. Step 6: Final answer
    x = 5,245.62

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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.