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Finding the Fourth Proportional to 66,798.12, 100,198.80 and 22,426.32

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Solution

The fourth proportional to 66,798.12, 100,198.80 and 22,426.32 is: 33,640.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,798.12 : 100,198.80 = 22,426.32 : x
  2. Step 2: Convert to fraction form
    66,798.12/100,198.80 = 22,426.32/x
  3. Step 3: Cross multiply
    66,798.12x = 100,198.80 × 22,426.32
  4. Step 4: Simplify right side
    66,798.12x = 2,247,090,352.42
  5. Step 5: Solve for x
    x = 2,247,090,352.42/66,798.12
  6. Step 6: Final answer
    x = 33,640.02

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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.