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Finding the Fourth Proportional to 29,984.42, 44,968.79 and 8,918.79

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Solution

The fourth proportional to 29,984.42, 44,968.79 and 8,918.79 is: 13,375.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,984.42 : 44,968.79 = 8,918.79 : x
  2. Step 2: Convert to fraction form
    29,984.42/44,968.79 = 8,918.79/x
  3. Step 3: Cross multiply
    29,984.42x = 44,968.79 × 8,918.79
  4. Step 4: Simplify right side
    29,984.42x = 401,067,216.86
  5. Step 5: Solve for x
    x = 401,067,216.86/29,984.42
  6. Step 6: Final answer
    x = 13,375.85

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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.