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Finding the Fourth Proportional to 49,008, 67,631.04 and 29,136

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Solution

The fourth proportional to 49,008, 67,631.04 and 29,136 is: 40,207.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,008 : 67,631.04 = 29,136 : x
  2. Step 2: Convert to fraction form
    49,008/67,631.04 = 29,136/x
  3. Step 3: Cross multiply
    49,008x = 67,631.04 × 29,136
  4. Step 4: Simplify right side
    49,008x = 1,970,497,981.44
  5. Step 5: Solve for x
    x = 1,970,497,981.44/49,008
  6. Step 6: Final answer
    x = 40,207.68

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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.