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Finding the Fourth Proportional to 67,412.96, 101,104.08 and 18,168.80

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Solution

The fourth proportional to 67,412.96, 101,104.08 and 18,168.80 is: 27,249.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,412.96 : 101,104.08 = 18,168.80 : x
  2. Step 2: Convert to fraction form
    67,412.96/101,104.08 = 18,168.80/x
  3. Step 3: Cross multiply
    67,412.96x = 101,104.08 × 18,168.80
  4. Step 4: Simplify right side
    67,412.96x = 1,836,939,808.70
  5. Step 5: Solve for x
    x = 1,836,939,808.70/67,412.96
  6. Step 6: Final answer
    x = 27,249.06

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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.