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Finding the Fourth Proportional to 11,668.16, 16,092.96 and 7,476.80

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Solution

The fourth proportional to 11,668.16, 16,092.96 and 7,476.80 is: 10,312.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,668.16 : 16,092.96 = 7,476.80 : x
  2. Step 2: Convert to fraction form
    11,668.16/16,092.96 = 7,476.80/x
  3. Step 3: Cross multiply
    11,668.16x = 16,092.96 × 7,476.80
  4. Step 4: Simplify right side
    11,668.16x = 120,323,843.33
  5. Step 5: Solve for x
    x = 120,323,843.33/11,668.16
  6. Step 6: Final answer
    x = 10,312.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.