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Finding the Fourth Proportional to 67,810.59, 101,704.28 and 17,891.21

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Solution

The fourth proportional to 67,810.59, 101,704.28 and 17,891.21 is: 26,833.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,810.59 : 101,704.28 = 17,891.21 : x
  2. Step 2: Convert to fraction form
    67,810.59/101,704.28 = 17,891.21/x
  3. Step 3: Cross multiply
    67,810.59x = 101,704.28 × 17,891.21
  4. Step 4: Simplify right side
    67,810.59x = 1,819,612,033.40
  5. Step 5: Solve for x
    x = 1,819,612,033.40/67,810.59
  6. Step 6: Final answer
    x = 26,833.74

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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.