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Finding the Fourth Proportional to 67,219.99, 100,774.90 and 27,805.39

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Solution

The fourth proportional to 67,219.99, 100,774.90 and 27,805.39 is: 41,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,219.99 : 100,774.90 = 27,805.39 : x
  2. Step 2: Convert to fraction form
    67,219.99/100,774.90 = 27,805.39/x
  3. Step 3: Cross multiply
    67,219.99x = 100,774.90 × 27,805.39
  4. Step 4: Simplify right side
    67,219.99x = 2,802,085,396.71
  5. Step 5: Solve for x
    x = 2,802,085,396.71/67,219.99
  6. Step 6: Final answer
    x = 41,685.30

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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.