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Finding the Fourth Proportional to 66,536.02, 91,819.74 and 38,241.64

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Solution

The fourth proportional to 66,536.02, 91,819.74 and 38,241.64 is: 52,773.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,536.02 : 91,819.74 = 38,241.64 : x
  2. Step 2: Convert to fraction form
    66,536.02/91,819.74 = 38,241.64/x
  3. Step 3: Cross multiply
    66,536.02x = 91,819.74 × 38,241.64
  4. Step 4: Simplify right side
    66,536.02x = 3,511,337,441.97
  5. Step 5: Solve for x
    x = 3,511,337,441.97/66,536.02
  6. Step 6: Final answer
    x = 52,773.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.