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Finding the Fourth Proportional to 67,047.96, 100,571.94 and 17,128.17

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Solution

The fourth proportional to 67,047.96, 100,571.94 and 17,128.17 is: 25,692.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,047.96 : 100,571.94 = 17,128.17 : x
  2. Step 2: Convert to fraction form
    67,047.96/100,571.94 = 17,128.17/x
  3. Step 3: Cross multiply
    67,047.96x = 100,571.94 × 17,128.17
  4. Step 4: Simplify right side
    67,047.96x = 1,722,612,697.05
  5. Step 5: Solve for x
    x = 1,722,612,697.05/67,047.96
  6. Step 6: Final answer
    x = 25,692.25

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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.