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Finding the Fourth Proportional to 12,324.52, 18,492.24 and 6,479.80

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Solution

The fourth proportional to 12,324.52, 18,492.24 and 6,479.80 is: 9,722.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,324.52 : 18,492.24 = 6,479.80 : x
  2. Step 2: Convert to fraction form
    12,324.52/18,492.24 = 6,479.80/x
  3. Step 3: Cross multiply
    12,324.52x = 18,492.24 × 6,479.80
  4. Step 4: Simplify right side
    12,324.52x = 119,826,016.75
  5. Step 5: Solve for x
    x = 119,826,016.75/12,324.52
  6. Step 6: Final answer
    x = 9,722.57

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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.