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Finding the Fourth Proportional to 66,593.94, 99,864.72 and 27,136.80

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Solution

The fourth proportional to 66,593.94, 99,864.72 and 27,136.80 is: 40,694.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,593.94 : 99,864.72 = 27,136.80 : x
  2. Step 2: Convert to fraction form
    66,593.94/99,864.72 = 27,136.80/x
  3. Step 3: Cross multiply
    66,593.94x = 99,864.72 × 27,136.80
  4. Step 4: Simplify right side
    66,593.94x = 2,710,008,933.70
  5. Step 5: Solve for x
    x = 2,710,008,933.70/66,593.94
  6. Step 6: Final answer
    x = 40,694.53

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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.