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Finding the Third Proportional to 27,387 and 39,136.50

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Solution

The third proportional to 27,387 and 39,136.50 is: 55,926.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,387 : 39,136.50 = 39,136.50 : x
  2. Step 2: Convert to fraction form
    27,387/39,136.50 = 39,136.50/x
  3. Step 3: Cross multiply
    27,387x = 39,136.50 × 39,136.50
  4. Step 4: Simplify right side
    27,387x = 1,531,665,632.25
  5. Step 5: Solve for x
    x = 1,531,665,632.25/27,387
  6. Step 6: Final answer
    x = 55,926.74

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.