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Finding the Fourth Proportional to 29,980.43, 44,962.79 and 8,914.79

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Solution

The fourth proportional to 29,980.43, 44,962.79 and 8,914.79 is: 13,369.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,980.43 : 44,962.79 = 8,914.79 : x
  2. Step 2: Convert to fraction form
    29,980.43/44,962.79 = 8,914.79/x
  3. Step 3: Cross multiply
    29,980.43x = 44,962.79 × 8,914.79
  4. Step 4: Simplify right side
    29,980.43x = 400,833,605.85
  5. Step 5: Solve for x
    x = 400,833,605.85/29,980.43
  6. Step 6: Final answer
    x = 13,369.84

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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.