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Finding the Fourth Proportional to 52,750.80, 79,109.79 and 17,682.25

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Solution

The fourth proportional to 52,750.80, 79,109.79 and 17,682.25 is: 26,517.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,750.80 : 79,109.79 = 17,682.25 : x
  2. Step 2: Convert to fraction form
    52,750.80/79,109.79 = 17,682.25/x
  3. Step 3: Cross multiply
    52,750.80x = 79,109.79 × 17,682.25
  4. Step 4: Simplify right side
    52,750.80x = 1,398,839,084.23
  5. Step 5: Solve for x
    x = 1,398,839,084.23/52,750.80
  6. Step 6: Final answer
    x = 26,517.87

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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.