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Finding the Fourth Proportional to 18,136.44, 25,008.08 and 11,754.63

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Solution

The fourth proportional to 18,136.44, 25,008.08 and 11,754.63 is: 16,208.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136.44 : 25,008.08 = 11,754.63 : x
  2. Step 2: Convert to fraction form
    18,136.44/25,008.08 = 11,754.63/x
  3. Step 3: Cross multiply
    18,136.44x = 25,008.08 × 11,754.63
  4. Step 4: Simplify right side
    18,136.44x = 293,960,668.64
  5. Step 5: Solve for x
    x = 293,960,668.64/18,136.44
  6. Step 6: Final answer
    x = 16,208.29

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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.