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Finding the Fourth Proportional to 67,142.73, 100,723.68 and 25,019.22

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Solution

The fourth proportional to 67,142.73, 100,723.68 and 25,019.22 is: 37,532.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,142.73 : 100,723.68 = 25,019.22 : x
  2. Step 2: Convert to fraction form
    67,142.73/100,723.68 = 25,019.22/x
  3. Step 3: Cross multiply
    67,142.73x = 100,723.68 × 25,019.22
  4. Step 4: Simplify right side
    67,142.73x = 2,520,027,909.13
  5. Step 5: Solve for x
    x = 2,520,027,909.13/67,142.73
  6. Step 6: Final answer
    x = 37,532.40

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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.