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Finding the Fourth Proportional to 34,396.50, 47,452.56 and 20,965.88

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Solution

The fourth proportional to 34,396.50, 47,452.56 and 20,965.88 is: 28,924.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,396.50 : 47,452.56 = 20,965.88 : x
  2. Step 2: Convert to fraction form
    34,396.50/47,452.56 = 20,965.88/x
  3. Step 3: Cross multiply
    34,396.50x = 47,452.56 × 20,965.88
  4. Step 4: Simplify right side
    34,396.50x = 994,884,678.65
  5. Step 5: Solve for x
    x = 994,884,678.65/34,396.50
  6. Step 6: Final answer
    x = 28,924.01

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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.