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Finding the Fourth Proportional to 66,903.15, 100,341.94 and 33,613.98

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Solution

The fourth proportional to 66,903.15, 100,341.94 and 33,613.98 is: 50,414.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,903.15 : 100,341.94 = 33,613.98 : x
  2. Step 2: Convert to fraction form
    66,903.15/100,341.94 = 33,613.98/x
  3. Step 3: Cross multiply
    66,903.15x = 100,341.94 × 33,613.98
  4. Step 4: Simplify right side
    66,903.15x = 3,372,891,964.32
  5. Step 5: Solve for x
    x = 3,372,891,964.32/66,903.15
  6. Step 6: Final answer
    x = 50,414.55

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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.