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Finding the Fourth Proportional to 66,631.03, 91,950.60 and 36,416.34

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Solution

The fourth proportional to 66,631.03, 91,950.60 and 36,416.34 is: 50,254.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,631.03 : 91,950.60 = 36,416.34 : x
  2. Step 2: Convert to fraction form
    66,631.03/91,950.60 = 36,416.34/x
  3. Step 3: Cross multiply
    66,631.03x = 91,950.60 × 36,416.34
  4. Step 4: Simplify right side
    66,631.03x = 3,348,504,449.37
  5. Step 5: Solve for x
    x = 3,348,504,449.37/66,631.03
  6. Step 6: Final answer
    x = 50,254.43

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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.