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Finding the Fourth Proportional to 11,324.54, 16,968.78 and 7,613.12

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Solution

The fourth proportional to 11,324.54, 16,968.78 and 7,613.12 is: 11,407.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,324.54 : 16,968.78 = 7,613.12 : x
  2. Step 2: Convert to fraction form
    11,324.54/16,968.78 = 7,613.12/x
  3. Step 3: Cross multiply
    11,324.54x = 16,968.78 × 7,613.12
  4. Step 4: Simplify right side
    11,324.54x = 129,185,358.39
  5. Step 5: Solve for x
    x = 129,185,358.39/11,324.54
  6. Step 6: Final answer
    x = 11,407.56

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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.