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Finding the Fourth Proportional to 67,840.94, 101,766.26 and 17,920.54

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Solution

The fourth proportional to 67,840.94, 101,766.26 and 17,920.54 is: 26,882.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,840.94 : 101,766.26 = 17,920.54 : x
  2. Step 2: Convert to fraction form
    67,840.94/101,766.26 = 17,920.54/x
  3. Step 3: Cross multiply
    67,840.94x = 101,766.26 × 17,920.54
  4. Step 4: Simplify right side
    67,840.94x = 1,823,706,332.98
  5. Step 5: Solve for x
    x = 1,823,706,332.98/67,840.94
  6. Step 6: Final answer
    x = 26,882.09

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1.5x scale

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.