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Finding the Fourth Proportional to 8,324.74, 12,489.51 and 3,706.66

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Solution

The fourth proportional to 8,324.74, 12,489.51 and 3,706.66 is: 5,561.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,324.74 : 12,489.51 = 3,706.66 : x
  2. Step 2: Convert to fraction form
    8,324.74/12,489.51 = 3,706.66/x
  3. Step 3: Cross multiply
    8,324.74x = 12,489.51 × 3,706.66
  4. Step 4: Simplify right side
    8,324.74x = 46,294,367.14
  5. Step 5: Solve for x
    x = 46,294,367.14/8,324.74
  6. Step 6: Final answer
    x = 5,561.06

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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.