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Finding the Fourth Proportional to 66,691.96, 100,066.02 and 29,232.70

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Solution

The fourth proportional to 66,691.96, 100,066.02 and 29,232.70 is: 43,861.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,691.96 : 100,066.02 = 29,232.70 : x
  2. Step 2: Convert to fraction form
    66,691.96/100,066.02 = 29,232.70/x
  3. Step 3: Cross multiply
    66,691.96x = 100,066.02 × 29,232.70
  4. Step 4: Simplify right side
    66,691.96x = 2,925,199,942.85
  5. Step 5: Solve for x
    x = 2,925,199,942.85/66,691.96
  6. Step 6: Final answer
    x = 43,861.36

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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.