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Finding the Third Proportional to 12,136.50 and 18,154.13

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Solution

The third proportional to 12,136.50 and 18,154.13 is: 27,155.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136.50 : 18,154.13 = 18,154.13 : x
  2. Step 2: Convert to fraction form
    12,136.50/18,154.13 = 18,154.13/x
  3. Step 3: Cross multiply
    12,136.50x = 18,154.13 × 18,154.13
  4. Step 4: Simplify right side
    12,136.50x = 329,572,254.52
  5. Step 5: Solve for x
    x = 329,572,254.52/12,136.50
  6. Step 6: Final answer
    x = 27,155.46

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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.