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Finding the Fourth Proportional to 36,658.62, 54,987.45 and 8,956.86

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Solution

The fourth proportional to 36,658.62, 54,987.45 and 8,956.86 is: 13,435.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,658.62 : 54,987.45 = 8,956.86 : x
  2. Step 2: Convert to fraction form
    36,658.62/54,987.45 = 8,956.86/x
  3. Step 3: Cross multiply
    36,658.62x = 54,987.45 × 8,956.86
  4. Step 4: Simplify right side
    36,658.62x = 492,514,891.41
  5. Step 5: Solve for x
    x = 492,514,891.41/36,658.62
  6. Step 6: Final answer
    x = 13,435.17

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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.