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Finding the Fourth Proportional to 52,839.32, 79,269.34 and 19,559.64

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Solution

The fourth proportional to 52,839.32, 79,269.34 and 19,559.64 is: 29,343.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,839.32 : 79,269.34 = 19,559.64 : x
  2. Step 2: Convert to fraction form
    52,839.32/79,269.34 = 19,559.64/x
  3. Step 3: Cross multiply
    52,839.32x = 79,269.34 × 19,559.64
  4. Step 4: Simplify right side
    52,839.32x = 1,550,479,753.44
  5. Step 5: Solve for x
    x = 1,550,479,753.44/52,839.32
  6. Step 6: Final answer
    x = 29,343.29

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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.