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Finding the Fourth Proportional to 36,668.07, 55,002.11 and 12,992.99

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Solution

The fourth proportional to 36,668.07, 55,002.11 and 12,992.99 is: 19,489.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,668.07 : 55,002.11 = 12,992.99 : x
  2. Step 2: Convert to fraction form
    36,668.07/55,002.11 = 12,992.99/x
  3. Step 3: Cross multiply
    36,668.07x = 55,002.11 × 12,992.99
  4. Step 4: Simplify right side
    36,668.07x = 714,641,525.23
  5. Step 5: Solve for x
    x = 714,641,525.23/36,668.07
  6. Step 6: Final answer
    x = 19,489.48

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Similar ratio
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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.