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Finding the Fourth Proportional to 64,585.92, 89,136.54 and 36,291

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Solution

The fourth proportional to 64,585.92, 89,136.54 and 36,291 is: 50,086.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,585.92 : 89,136.54 = 36,291 : x
  2. Step 2: Convert to fraction form
    64,585.92/89,136.54 = 36,291/x
  3. Step 3: Cross multiply
    64,585.92x = 89,136.54 × 36,291
  4. Step 4: Simplify right side
    64,585.92x = 3,234,854,173.14
  5. Step 5: Solve for x
    x = 3,234,854,173.14/64,585.92
  6. Step 6: Final answer
    x = 50,086.06

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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.