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Finding the Fourth Proportional to 49,990.50, 68,987.07 and 27,329.94

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Solution

The fourth proportional to 49,990.50, 68,987.07 and 27,329.94 is: 37,715.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,990.50 : 68,987.07 = 27,329.94 : x
  2. Step 2: Convert to fraction form
    49,990.50/68,987.07 = 27,329.94/x
  3. Step 3: Cross multiply
    49,990.50x = 68,987.07 × 27,329.94
  4. Step 4: Simplify right side
    49,990.50x = 1,885,412,483.88
  5. Step 5: Solve for x
    x = 1,885,412,483.88/49,990.50
  6. Step 6: Final answer
    x = 37,715.42

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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.