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Finding the Fourth Proportional to 12,296.40, 18,454.20 and 5,723.40

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Solution

The fourth proportional to 12,296.40, 18,454.20 and 5,723.40 is: 8,589.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,296.40 : 18,454.20 = 5,723.40 : x
  2. Step 2: Convert to fraction form
    12,296.40/18,454.20 = 5,723.40/x
  3. Step 3: Cross multiply
    12,296.40x = 18,454.20 × 5,723.40
  4. Step 4: Simplify right side
    12,296.40x = 105,620,768.28
  5. Step 5: Solve for x
    x = 105,620,768.28/12,296.40
  6. Step 6: Final answer
    x = 8,589.57

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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.