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Finding the Fourth Proportional to 52,930.80, 79,405.92 and 17,871.84

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Solution

The fourth proportional to 52,930.80, 79,405.92 and 17,871.84 is: 26,811.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,930.80 : 79,405.92 = 17,871.84 : x
  2. Step 2: Convert to fraction form
    52,930.80/79,405.92 = 17,871.84/x
  3. Step 3: Cross multiply
    52,930.80x = 79,405.92 × 17,871.84
  4. Step 4: Simplify right side
    52,930.80x = 1,419,129,897.29
  5. Step 5: Solve for x
    x = 1,419,129,897.29/52,930.80
  6. Step 6: Final answer
    x = 26,811.04

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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.