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Finding the Fourth Proportional to 67,805.87, 101,715.62 and 17,889.41

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Solution

The fourth proportional to 67,805.87, 101,715.62 and 17,889.41 is: 26,835.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,805.87 : 101,715.62 = 17,889.41 : x
  2. Step 2: Convert to fraction form
    67,805.87/101,715.62 = 17,889.41/x
  3. Step 3: Cross multiply
    67,805.87x = 101,715.62 × 17,889.41
  4. Step 4: Simplify right side
    67,805.87x = 1,819,632,594.43
  5. Step 5: Solve for x
    x = 1,819,632,594.43/67,805.87
  6. Step 6: Final answer
    x = 26,835.92

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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.