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Finding the Fourth Proportional to 66,797.87, 100,208.34 and 22,428.90

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Solution

The fourth proportional to 66,797.87, 100,208.34 and 22,428.90 is: 33,647.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,797.87 : 100,208.34 = 22,428.90 : x
  2. Step 2: Convert to fraction form
    66,797.87/100,208.34 = 22,428.90/x
  3. Step 3: Cross multiply
    66,797.87x = 100,208.34 × 22,428.90
  4. Step 4: Simplify right side
    66,797.87x = 2,247,562,837.03
  5. Step 5: Solve for x
    x = 2,247,562,837.03/66,797.87
  6. Step 6: Final answer
    x = 33,647.23

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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.